OK
PR A
E
C
I
B
T
O
C
Allyn Fisher
B2PB-B
Teacher Materials
Introduction
Practice Pages Grouped by Skill
Answer Keys
i
iii
Unit One
Unit Two
Unit Three
Unit Four
Unit Five
Unit Six
Unit Seven
xi
xiv
xv
xix
xxii
xxv
xxvi
Unit One: Sorting, Patterning & Number
Use anytime after Session 12
Numbers & Words, 11–20
Apples & Shapes
Adding & Subtracting 0’s, 1’s, & 2’s
Dollars & Dimes
Adding Doubles & Neighbors
Fish & Farm Problems
Number Lines & Counting Patterns
Baseball Cards & Darts
Thinking about 2’s
Fish & Money Problems
Fact Families: 6’s
Crayons & Coins
1
2
3
4
5
6
7
8
9
10
11
12
Use anytime after Session 23
Dominoes & Counting Patterns
Fish & Pictures
Numbers & Coins
Blocks & Apples
Fact Families: 7’s
Pennies, Bikes, & Trikes
Fingers & Toes
Inchworm’s Garden
Thinking about 5’s
Shells & Coins
13
14
15
16
17
18
19
20
21
22
Fact Families: 8’s
Inchworm’s Paths
23
24
Unit Two: Hungry Ants Story Problems
Use anytime after Session 10
Ella’s Piggy Bank
Pets & Coins
Fact Families: 9’s
Fish Problems
Cubes on a Line
Ant Paths
Fact Families: 10’s
Ant Story Problems
Triangle Fact Families
T-Shirts & Turtles
All about Tens
Dollars & Quarters
25
26
27
28
29
30
31
32
33
34
35
36
Unit Three: Addition, Subtraction & Probability
Use anytime after Session 12
Facts to 8
Flowers & Oranges
Telling Time on Two Kinds of Clocks
Ladybug Story Problems
Facts to 9
Cookies & Apples
Number Patterns
Measuring Ladybug Paths
Facts to 10
Snacks
Addition & Subtraction Tables
Comparing Numbers to 100
37
38
39
40
41
42
43
44
45
46
47
48
Use anytime after Session 24
Missing Numbers
Beads & Patterns
Doubles & Neighbors
The Gym Teacher & Jason at the School Store
Fast Nines & Fast Tens
Baseball Cards & Teri at the School Store
Scout Them Out Add & Subtract
Extra Facts
Make Ten Facts
49
50
51
52
53
54
55
56
57
A.M. or P.M.?
More Scout Them Outs
Numbers & Words
58
59
60
Unit Four: Exploring Shapes, Symmetry, Area & Number
Use anytime after Session 12
Mystery Shapes
More Extra Facts Practice
More Make Ten Facts
Using Make Ten Facts to Help Subtract
Symmetry
The Shapes Shop
Thinking about Place Value
Two Different Ways to Write Money Amounts
Subtraction Strategies
Sara’s Pockets
Halves
Comparing Numbers to 300
61
62
63
64
65
66
67
68
69
70
71
72
Use anytime after Session 25
Fact Family Triangles
Bowls & Vans
Puzzles about Ten & More
Another Trip to the Shapes Shop
Make Tens to Subtract
Books & Granola Bars
More Fact Family Triangles
Ants & the Number Box
Adding & Subtracting Tens
Apples & Snow People
Half & Half
Sharing Stories
73
74
75
76
77
78
79
80
81
82
83
84
Unit Five: Branching into Larger Numbers Money &
Place Value
Use anytime after Session 17
Missing Numbers
Pet Shop Equations
Tens & Ones
Nuts & Carrots
Different Ways to Look at 300
Different Ways to Look at the Same Number
Time & Money Problems
85
86
87
88
89
90
91
Hundreds, Tens & Ones
Shopping & the Number Box
Base Ten Addition
Shopping Problems
Base Ten Subtraction
Coin Problems
92
93
94
95
96
97
Use anytime after Session 35
Adding & Subtracting Tens & Nines
Wheels
Place Value Practice
Pencil Puppy & Pal
2-Digit Addition
More Facts Than You Need
Numbers & Clocks
Sam’s Hot Dog Stand
2-Digit Subtraction
The Pet Graph
More 2-Digit Addition
More 2-Digit Subtraction
98
99
100
101
102
103
104
105
106
107
108
109
Unit Six: Get Those Marbles Rolling Measuring & Statistics
Use anytime after Session 13
Which Makes the Most Sense?
Estimation Problems
Adding & Subtracting Practice
Grandma’s Button Box
2-Digit Addition Practice
Lines & Buttons
Time & Money
Cubes & Homework
More Place Value Practice
Homework & 100
2-Digit Subtraction Practice
Make Your Own Problems
110
111
112
113
114
115
116
117
118
119
120
121
Unit Seven: Games, Graphs & Toys Probability, Statistics &
Computation
Use anytime after Session 14
Solving Equations
Apples & Orange Slices
The Second Graders Clean Their Desks
Measuring Problems
122
123
124
125
Fractions
The Army Ants Measure Up
Place Value Review
More about Meters
Adding & Subtracting
Crayons
Pedro’s Birthday
More Crayon Problems
126
127
128
129
130
131
132
133
Use anytime after Session 25
Digits & Number Riddles
The Toy Store
Enough Time in the Day
More Toy Store Problems
More Fractions
Pizza Problems
Reading & Writing Numbers
How Long Is a Shark?
Addition & Subtraction Practice
Maria Jose’s Day
More Number Patterns
Breanna’s Pockets
134
135
136
137
138
139
140
141
142
143
144
145
Practice Book
Bridges in Mathematics Grade 2 Practice Book Blacklines
There are 144 blacklines in this document, designed to be photocopied to provide second grade students
with practice in key skill areas, including:
• reading, writing, comparing, and ordering numbers to 1,000
• skip counting and number patterns
• addition and subtraction facts to 18
• place value concepts
• 2- and 3-digit addition
• early multiplication and division
• fractions
• measurement, money, time, graphing
• problem solving
This set of blacklines also includes the following materials for the teacher:
• This introduction
• A complete listing of the student pages grouped by skill (see pages iii–x)
• Answer Keys (see pages xi–xxix)
Note These teacher materials are not included in the bound student version of the Practice Book, which is
sold separately.
While the Practice Book pages are not integral to the Bridges Grade 2 program, they may help you better
address the needs of some or all of your students, as well as the grade-level expectations in your particular state. The Practice Book pages may be assigned as seatwork or homework after Bridges sessions that
don’t include Home Connections. These pages may also serve as a source of:
• skill review
• informal paper-and-pencil assessment
• preparation for standardized testing
• differentiated instruction
Every set of 12 pages has been written to follow the instruction in roughly half a Bridges unit. Practice
pages 1–12 can be used any time after Unit One, Session 12; pages 13–24 can be used any time after Unit
One, Session 23; and so on. Recommended timings are noted at the top of each page. If you are using
this Practice Book with another curriculum, use the lists that follow to assign pages based on the skills
they address.
Some of the problems on certain pages have been marked with a Challenge icon. These problems may
not be appropriate for all the students in your classroom; consider assigning them selectively.
© The Math Learning Center
Bridges in Mathematics nn i
Practice Book
Grade 2 Practice Book Pages Grouped by Skill
READING, WRITING , COMPARING & ORDERING 2-DIGIT NUMBERS
Page Title
Page Number
Recommended Timing
Numbers & Words, 11–20
1
Anytime after Bridges Unit 1, Session 12
Number Lines & Counting Patterns
7
Anytime after Bridges Unit 1, Session 12
Thinking about 2’s
9
Anytime after Bridges Unit 1, Session 12
Numbers & Coins
15
Anytime after Bridges Unit 1, Session 23
Thinking about 5’s
21
Anytime after Bridges Unit 1, Session 23
Cubes on a Line
29
Anytime after Bridges Unit 2, Session 10
Number Patterns
43
Anytime after Bridges Unit 3, Session 12
Comparing Numbers to 100
48
Anytime after Bridges Unit 3, Session 12
Numbers & Words
60
Anytime after Bridges Unit 3, Session 24
READING, WRITING , COMPARING & ORDERING 3-DIGIT NUMBERS
Page Title
Page Number
Recommended Timing
Comparing Numbers to 300
72
Anytime after Bridges Unit 4, Session 12
Numbers & Clocks
104
Anytime after Bridges Unit 5, Session 35
Sam’s Hot Dog Stand
105
Anytime after Bridges Unit 5, Session 35
More Place Value Practice
118
Anytime after Bridges Unit 6, Session 13
Place Value Review
128
Anytime after Bridges Unit 7, Session 14
Reading & Writing Numbers
140
Anytime after Bridges Unit 7, Session 25
How Long Is a Shark?
141
Anytime after Bridges Unit 7, Session 25
SKIP COUNTING & NUMBER PATTERNS
Page Title
Page Number
Recommended Timing
Number Lines & Counting Patterns
7
Anytime after Bridges Unit 1, Session 12
Thinking about 2’s
9
Anytime after Bridges Unit 1, Session 12
Dominoes & Counting Patterns
13
Anytime after Bridges Unit 1, Session 23
Fingers & Toes
19
Anytime after Bridges Unit 1, Session 23
Thinking about 5’s
21
Anytime after Bridges Unit 1, Session 23
Cubes on a Line
29
Anytime after Bridges Unit 2, Session 10
Number Patterns
43
Anytime after Bridges Unit 3, Session 12
Missing Numbers
49
Anytime after Bridges Unit 3, Session 24
Beads & Patterns
50
Anytime after Bridges Unit 3, Session 24
More Number Patterns
144
Anytime after Bridges Unit 7, Session 25
© The Math Learning Center
Bridges in Mathematics nn iii
Practice Book
Grade 2 Practice Book Pages Grouped by Skill (cont.)
ADDITION & SUBTRACTION FACTS TO 10
Page Title
Page Number
Recommended Timing
Apples & Shapes
2
Anytime after Bridges Unit 1, Session 12
Adding & Subtracting 0’s, 1’s & 2’s
3
Anytime after Bridges Unit 1, Session 12
Dollars & Dimes
4
Anytime after Bridges Unit 1, Session 12
Adding Doubles & Neighbors
5
Anytime after Bridges Unit 1, Session 12
Fact Families: 6’s
11
Anytime after Bridges Unit 1, Session 12
Dominoes & Counting Patterns
13
Anytime after Bridges Unit 1, Session 23
Fact Families: 7’s
17
Anytime after Bridges Unit 1, Session 23
Fact Families: 8’s
23
Anytime after Bridges Unit 1, Session 23
Fact Families: 9’s
27
Anytime after Bridges Unit 2, Session 10
Fact Families: 10’s
31
Anytime after Bridges Unit 2, Session 10
Triangle Fact Families
33
Anytime after Bridges Unit 2, Session 10
All about Tens
35
Anytime after Bridges Unit 2, Session 10
Facts to 8
37
Anytime after Bridges Unit 3, Session 12
Facts to 9
41
Anytime after Bridges Unit 3, Session 12
Facts to 10
45
Anytime after Bridges Unit 3, Session 12
Addition & Subtraction Tables
47
Anytime after Bridges Unit 3, Session 12
ADDITION & SUBTRACTION FACTS TO 18
Page Title
Page Number
Recommended Timing
Fish & Farm Problems
6
Anytime after Bridges Unit 1, Session 12
Baseball Cards & Darts
8
Anytime after Bridges Unit 1, Session 12
Fish & Money Problems
10
Anytime after Bridges Unit 1, Session 12
Crayons & Coins
12
Anytime after Bridges Unit 1, Session 12
Fish & Pictures
14
Anytime after Bridges Unit 1, Session 23
Blocks & Apples
16
Anytime after Bridges Unit 1, Session 23
Pennies, Bikes & Trikes
18
Anytime after Bridges Unit 1, Session 23
Shells & Coins
22
Anytime after Bridges Unit 1, Session 23
Pets & Coins
26
Anytime after Bridges Unit 2, Session 10
Fish Problems
28
Anytime after Bridges Unit 2, Session 10
Ant Story Problems
32
Anytime after Bridges Unit 2, Session 10
T-Shirts & Turtles
34
Anytime after Bridges Unit 2, Session 10
Dollars & Quarters
36
Anytime after Bridges Unit 2, Session 10
Flowers & Oranges
37
Anytime after Bridges Unit 3, Session 12
Cookies & Apples
42
Anytime after Bridges Unit 3, Session 12
Snacks
46
Anytime after Bridges Unit 3, Session 12
Missing Numbers
49
Anytime after Bridges Unit 3, Session 24
Doubles & Neighbors
51
Anytime after Bridges Unit 3, Session 24
The Gym Teacher & Jason at the School Store
52
Anytime after Bridges Unit 3, Session 24
Fast Nines & Fast Tens
53
Anytime after Bridges Unit 3, Session 24
Baseball Cards & Teri at the School Store
54
Anytime after Bridges Unit 3, Session 24
Scout Them Out Add & Subtract
55
Anytime after Bridges Unit 3, Session 24
iv nn Bridges in Mathematics
© The Math Learning Center
Practice Book
Grade 2 Practice Book Pages Grouped by Skill (cont.)
ADDITION & SUBTRACTION FACTS TO 18
Extra Facts
56
Anytime after Bridges Unit 3, Session 24
More Extra Facts Practice
62
Anytime after Bridges Unit 4, Session 12
Using Make Ten Facts to Help Subtract
64
Anytime after Bridges Unit 4, Session 12
Adding & Subtracting Tens & Nines
98
Anytime after Bridges Unit 5, Session 35
Adding & Subtracting Practice
112
Anytime after Bridges Unit 6, Session 13
Addition & Subtraction Practice
142
Anytime after Bridges Unit 7, Session 25
SOLVING EQUATIONS
Page Title
Page Number
Recommended Timing
Missing Numbers
49
Anytime after Bridges Unit 3, Session 24
Pet Shop Equations
86
Anytime after Bridges Unit 5, Session 17
Solving Equations
122
Anytime after Bridges Unit 7, Session 14
PLACE VALUE & THE BASE TEN SYSTEM
Page Title
Page Number
Recommended Timing
Cubes on a Line
29
Anytime after Bridges Unit 2, Session 10
Comparing Numbers to 100
48
Anytime after Bridges Unit 3, Session 12
Comparing Numbers to 300
72
Anytime after Bridges Unit 4, Session 12
Tens & Ones
87
Anytime after Bridges Unit 5, Session 17
Different Ways to Look at 300
89
Anytime after Bridges Unit 5, Session 17
Different Ways to Look at the Same Number
90
Anytime after Bridges Unit 5, Session 17
Hundreds, Tens & Ones
92
Anytime after Bridges Unit 5, Session 17
Place Value Practice
100
Anytime after Bridges Unit 5, Session 35
Pencil Puppy & Pal
101
Anytime after Bridges Unit 5, Session 35
Numbers & Clocks
104
Anytime after Bridges Unit 5, Session 35
More Place Value Practice
118
Anytime after Bridges Unit 6, Session 13
Place Value Review
128
Anytime after Bridges Unit 7, Session 14
Digits & Number Riddles
134
Anytime after Bridges Unit 7, Session 25
Reading & Writing Numbers
140
Anytime after Bridges Unit 7, Session 25
© The Math Learning Center
Bridges in Mathematics nn v
Grade 2 Practice Book Pages Grouped by Skill (cont.)
2- & 3-DIGIT ADDITION & SUBTRACTION
Page Title
Page Number
Recommended Timing
Snacks (challenge)
46
Anytime after Bridges Unit 3, Session 12
The Gym Teacher & Jason at the School Store (challenge)
52
Anytime after Bridges Unit 3, Session 24
Baseball Cards & Teri at the School Store (challenge)
54
Anytime after Bridges Unit 3, Session 24
Ants & the Number Box (challenge)
80
Anytime after Bridges Unit 4, Session 25
Adding & Subtracting Tens
81
Anytime after Bridges Unit 4, Session 25
Shopping & the Number Box
93
Anytime after Bridges Unit 5, Session 17
Base Ten Addition
94
Anytime after Bridges Unit 5, Session 17
Shopping Problems
95
Anytime after Bridges Unit 5, Session 17
Base Ten Subtraction
96
Anytime after Bridges Unit 5, Session 17
Place Value Practice
100
Anytime after Bridges Unit 5, Session 35
Pencil Puppy & Pal
101
Anytime after Bridges Unit 5, Session 35
2-Digit Addition
102
Anytime after Bridges Unit 5, Session 35
More Facts Than You Need
103
Anytime after Bridges Unit 5, Session 35
Sam’s Hot Dog Stand
105
Anytime after Bridges Unit 5, Session 35
2-Digit Subtraction
106
Anytime after Bridges Unit 5, Session 35
The Pet Graph
107
Anytime after Bridges Unit 5, Session 35
More 2-Digit Addition
108
Anytime after Bridges Unit 5, Session 35
More 2-Digit Subtraction
109
Anytime after Bridges Unit 5, Session 35
Adding & Subtracting Practice
112
Anytime after Bridges Unit 6, Session 13
Grandma’s Button Box
113
Anytime after Bridges Unit 6, Session 13
2-Digit Addition Practice
114
Anytime after Bridges Unit 6, Session 13
More Place Value Practice
118
Anytime after Bridges Unit 6, Session 13
2-Digit Subtraction Practice
120
Anytime after Bridges Unit 6, Session 13
Make Your Own Problems
121
Anytime after Bridges Unit 6, Session 13
Solving Equations
122
Anytime after Bridges Unit 7, Session 14
The Second Graders Clean Their Desks
124
Anytime after Bridges Unit 7, Session 14
Adding & Subtracting
130
Anytime after Bridges Unit 7, Session 14
Crayons
131
Anytime after Bridges Unit 7, Session 14
More Crayon Problems
133
Anytime after Bridges Unit 7, Session 14
The Toy Store
135
Anytime after Bridges Unit 7, Session 25
More Toy Store Problems
137
Anytime after Bridges Unit 7, Session 25
Reading & Writing Numbers
140
Anytime after Bridges Unit 7, Session 25
COMPUTATIONAL ESTIMATION
Page Title
Page Number
Recommended Timing
Which Makes Most Sense?
110
Anytime after Bridges Unit 6, Session 13
Estimation Problems
111
Anytime after Bridges Unit 6, Session 13
vi nn Bridges in Mathematics
© The Math Learning Center
Practice Book
Grade 2 Practice Book Pages Grouped by Skill (cont.)
EARLY MULTIPLICATION & DIVISION CONCEPTS
Page Title
Page Number
Recommended Timing
Thinking about 2’s
9
Anytime after Bridges Unit 1, Session 12
Fingers & Toes
19
Anytime after Bridges Unit 1, Session 23
Ant Story Problems
32
Anytime after Bridges Unit 2, Session 10
Flowers & Oranges (challenge)
38
Anytime after Bridges Unit 3, Session 12
Cookies & Apples (challenge)
42
Anytime after Bridges Unit 3, Session 12
Bowls & Vans
74
Anytime after Bridges Unit 4, Session 25
Books & Granola Bars
78
Anytime after Bridges Unit 4, Session 25
Ants & the Number Box
80
Anytime after Bridges Unit 4, Session 25
Apples & Snow People
82
Anytime after Bridges Unit 4, Session 25
Sharing Stories
84
Anytime after Bridges Unit 4, Session 25
Nuts & Carrots
88
Anytime after Bridges Unit 5, Session 17
Apples & Orange Slices
123
Anytime after Bridges Unit 7, Session 14
More Number Patterns
144
Anytime after Bridges Unit 7, Session 25
FRACTIONS
Page Title
Page Number
Recommended Timing
Half & Half
83
Anytime after Bridges Unit 4, Session 25
Fractions
126
Anytime after Bridges Unit 7, Session 14
More Fractions
138
Anytime after Bridges Unit 7, Session 25
Pizza Problems
139
Anytime after Bridges Unit 7, Session 25
MONEY
Page Title
Page Number
Recommended Timing
Fish & Money Problems
10
Anytime after Bridges Unit 1, Session 12
Crayons & Coins
12
Anytime after Bridges Unit 1, Session 12
Numbers & Coins
15
Anytime after Bridges Unit 1, Session 23
Ella’s Piggy Bank
25
Anytime after Bridges Unit 2, Session 10
The Shapes Shop
66
Anytime after Bridges Unit 4, Session 12
Two Different Ways to Write Money Amounts
68
Anytime after Bridges Unit 4, Session 12
Another Trip to the Shapes Shop
76
Anytime after Bridges Unit 4, Session 25
Tens & Ones
87
Anytime after Bridges Unit 5, Session 17
Time & Money Problems
91
Anytime after Bridges Unit 5, Session 17
Coin Problems
97
Anytime after Bridges Unit 5, Session 17
Time & Money
116
Anytime after Bridges Unit 6, Session 13
Crayons
131
Anytime after Bridges Unit 7, Session 14
More Crayon Problems
133
Anytime after Bridges Unit 7, Session 14
The Toy Store
135
Anytime after Bridges Unit 7, Session 25
More Toy Store Problems
137
Anytime after Bridges Unit 7, Session 25
© The Math Learning Center
Bridges in Mathematics nn vii
Practice Book
Grade 2 Practice Book Pages Grouped by Skill (cont.)
TIME
Page Title
Page Number
Recommended Timing
Telling Time on Two Kinds of Clocks
39
Anytime after Bridges Unit 3, Session 12
A.M. or P.M.?
58
Anytime after Bridges Unit 3, Session 24
Time & Money Problems
91
Anytime after Bridges Unit 5, Session 17
Adding & Subtracting Tens & Nines
98
Anytime after Bridges Unit 5, Session 35
Numbers & Clocks
104
Anytime after Bridges Unit 5, Session 35
Time & Money
116
Anytime after Bridges Unit 6, Session 13
Pedro’s Birthday
132
Anytime after Bridges Unit 7, Session 14
Enough Time in the Day
136
Anytime after Bridges Unit 7, Session 25
Maria Jose’s Day
143
Anytime after Bridges Unit 7, Session 25
MEASUREMENT (LENGTH IN U.S. CUSTOMARY UNITS)
Page Title
Page Number
Recommended Timing
Inchworm’s Garden
20
Anytime after Bridges Unit 1, Session 23
Inchworm’s Paths
24
Anytime after Bridges Unit 1, Session 23
More Number Patterns
144
Anytime after Bridges Unit 7, Session 25
MEASUREMENT (LENGTH IN METRIC UNITS)
Page Title
Page Number
Recommended Timing
Ant Paths
30
Anytime after Bridges Unit 2, Session 10
Measuring Ladybug Paths
44
Anytime after Bridges Unit 3, Session 12
Measuring Problems
125
Anytime after Bridges Unit 7, Session 14
The Army Ants Measure Up
127
Anytime after Bridges Unit 7, Session 14
More about Meters
129
Anytime after Bridges Unit 7, Session 14
GEOMETRY
Page Title
Page Number
Recommended Timing
Symmetry
65
Anytime after Unit 4, Session 12
GRAPHING
Page Title
Page Number
Recommended Timing
Ella’s Piggy Bank
25
Anytime after Bridges Unit 2, Session 10
The Pet Graph
107
Anytime after Bridges Unit 5, Session 35
Grandma’s Button Box
113
Anytime after Bridges Unit 6, Session 13
The Second Graders Clean Their Desks
124
Anytime after Bridges Unit 7, Session 14
viii nn Bridges in Mathematics
© The Math Learning Center
Practice Book
Grade 2 Practice Book Pages Grouped by Skill (cont.)
PROBLEM SOLVING
Page Title
Page Number
Recommended Timing
Apples & Shapes
2
Anytime after Bridges Unit 1, Session 12
Dollars & Dimes
4
Anytime after Bridges Unit 1, Session 12
Fish & Farm Problems
6
Anytime after Bridges Unit 1, Session 12
Baseball Cards & Darts
8
Anytime after Bridges Unit 1, Session 12
Fish & Money Problems
10
Anytime after Bridges Unit 1, Session 12
Crayons & Coins
12
Anytime after Bridges Unit 1, Session 12
Fish & Pictures
14
Anytime after Bridges Unit 1, Session 23
Blocks & Apples
16
Anytime after Bridges Unit 1, Session 23
Pennies, Bikes & Trikes
18
Anytime after Bridges Unit 1, Session 23
Shells & Coins
22
Anytime after Bridges Unit 1, Session 23
Pets & Coins
26
Anytime after Bridges Unit 2, Session 10
Fish Problems
28
Anytime after Bridges Unit 2, Session 10
Ant Story Problems
32
Anytime after Bridges Unit 2, Session 10
T-Shirts & Turtles
34
Anytime after Bridges Unit 2, Session 10
Dollars & Quarters
36
Anytime after Bridges Unit 2, Session 10
Flowers & Oranges
38
Anytime after Bridges Unit 3, Session 12
Ladybug Story Problems
40
Anytime after Bridges Unit 3, Session 12
Beads & Patterns
50
Anytime after Bridges Unit 3, Session 24
The Gym Teacher & Jason at the School Store
52
Anytime after Bridges Unit 3, Session 24
Baseball Cards & Teri at the School Store
54
Anytime after Bridges Unit 3, Session 24
Extra Facts
56
Anytime after Bridges Unit 3, Session 24
More Extra Facts Practice
62
Anytime after Bridges Unit 4, Session 12
The Shapes Shop
66
Anytime after Bridges Unit 4, Session 12
Sara’s Pockets
70
Anytime after Bridges Unit 4, Session 12
Bowls & Vans
74
Anytime after Bridges Unit 4, Session 12
Another Trip to the Shapes Shop
76
Anytime after Bridges Unit 4, Session 25
Books & Granola Bars
78
Anytime after Bridges Unit 4, Session 25
Ants & the Number Box
80
Anytime after Bridges Unit 4, Session 25
Apples & Snow People
82
Anytime after Bridges Unit 4, Session 25
Sharing Stories
84
Anytime after Bridges Unit 4, Session 25
Pet Shop Equations
86
Anytime after Bridges Unit 5, Session 17
Nuts & Carrots
88
Anytime after Bridges Unit 5, Session 17
Shopping & the Number Box
93
Anytime after Bridges Unit 5, Session 17
Shopping Problems
95
Anytime after Bridges Unit 5, Session 17
Coin Problems
97
Anytime after Bridges Unit 5, Session 17
Wheels
99
Anytime after Bridges Unit 5, Session 35
Pencil Puppy & Pal
101
Anytime after Bridges Unit 5, Session 35
More Facts Than You Need
103
Anytime after Bridges Unit 5, Session 35
Lines & Buttons
115
Anytime after Bridges Unit 6, Session 13
Cubes & Homework
117
Anytime after Bridges Unit 6, Session 13
Homework & 100
119
Anytime after Bridges Unit 6, Session 13
Make Your Own Problems
121
Anytime after Bridges Unit 6, Session 13
© The Math Learning Center
Bridges in Mathematics nn ix
Practice Book
Grade 2 Practice Book Pages Grouped by Skill (cont.)
PROBLEM SOLVING (CONT.)
Page Title
Page Number
Recommended Timing
Apples & Orange Slices
123
Anytime after Bridges Unit 7, Session 14
Crayons
131
Anytime after Bridges Unit 7, Session 14
More Crayon Problems
133
Anytime after Bridges Unit 7, Session 14
The Toy Store
135
Anytime after Bridges Unit 7, Session 25
More Toy Store Problems
137
Anytime after Bridges Unit 7, Session 25
Pizza Problems
139
Anytime after Bridges Unit 7, Session 25
More Number Patterns
144
Anytime after Bridges Unit 7, Session 25
x nn Bridges in Mathematics
© The Math Learning Center
Practice Book
Grade 2 Practice Book Answer Keys
ANSWER KEY
Use after Unit One, Session 12
Page 1, Numbers & Words, 11–20
1
eleven 11 11
twelve 12 12
thirteen 13 13
fourteen 14 14
fifteen 15 15
sixteen 16 16
seventeen 17 17
eighteen 18 18
nineteen 19 19
twenty 20 20
2 12, 14, 16
Page 2, Apples & Shapes
1 9 apples; students’ work will vary.
2 (challenge) Students’ work will vary. Example:
4¢
5¢
5¢
3¢
3¢
4¢
5¢ + 5¢ = 10¢
4¢ + 4¢ = 8¢
10¢ + 8¢ = 18¢
3¢ + 3¢ = 6¢
18¢ + 6¢ = 24¢
Page 3, Adding & Subtracting 0’s, 1’s, & 2’s
1
6, 5,
7, 3, 4,
5, 7, 6,
6, 4, 8
2 2, 1
5, 3, 0,
3, 5, 4,
6, 2, 4
Page 4, Dollars & Dimes
1 4 dollars; students’ work will vary.
2 (challenge) 30 dimes; students’ work will vary.
© The Math Learning Center
Page 5, Adding Doubles & Neighbors
1
0, 1, 2
3, 4, 5
6, 7, 8
9, 10, 20
2 a 5
b 9
c 8
d 7
e 10
f 5
g 9
h 4
Page 6, Fish & Farm Problems
1 5 fish; students’ work will vary.
2 (challenge) 4 ducks and 2 sheep; students’ work
will vary.
Page 7, Number Lines & Counting Patterns
1 No key necessary
2 a 15, 16, 18
b 30, 35, 40
c 14, 20, 24, 26
d 1, 7, 11, 13
Page 8, Baseball Cards & Darts
1 7 baseball cards; students’ work will vary.
2 (challenge) She could get 3, 4, 5, 6, 7, 8, 9, 10, or 12
points. (There are 2 different ways she could get 6
points.) Students’ work will vary. Example:
1
2
4
33
3
3
6 pts
5 pts
33
3
3
4 pts
3
33
3
Total
3 pts
333
33
9 pts
3
7 pts
6 pts
333
33
3
8 pts
3
33
10 pts
333
12 pts
Bridges in Mathematics nn xi
Practice Book
ANSWER KEY
Use after Unit One, Session 12 (cont.)
Page 9, Thinking about 2’s
Page 12, Crayons & Coins
1
1 12 crayons; students’ work will vary.
2 (challenge) 3 nickels and 2 dimes; students’ work
will vary.
2, 3, 5, 6, 7, 8, 10
11, 13, 14, 16, 17, 18, 19
21, 22, 23, 25, 26, 28, 29, 30
31, 32, 34, 35, 37, 39, 40
2 8, 12, 26, 14
20, 32, 16, 10
3 6, 10, 14, 8
26, 34, 22, 38
4 a 18 antennae
b 24 wings
c 14 ears
Use after Unit One, Session 23
Page 13, Dominoes & Counting Patterns
1
2
3
4
Page 10, Fish & Money Problems
1 4 fish
2 (challenge) Students’ responses to 2d–g may be
entered in a different order than on the chart below.
Dimes
Nickels
Pennies
ex a
2
0
3
ex b
1
2
3
a
1
1
8
b
1
0
13
c
0
4
3
d
0
3
8
e
0
2
13
f
0
1
18
g
0
0
23
3 + 4, 5 + 4, 5 + 5, 4 + 4
4, 3, 6 + 6, 4
Students’ responses will vary.
a 28, 30, 32
b 33, 35
c 13, 9
d 39, 37
Page 14, Fish & Pictures
1 5 red fish; students’ work will vary.
2 (challenge) Students’ work will vary. Example:
4¢
3¢
5¢
5¢
5¢
5¢
3¢
3¢
3¢
5¢ + 5¢ + 5¢ + 5¢ = 20¢
3¢ + 3¢ + 3¢ + 3¢ = 12¢
20¢ + 12¢ = 32¢
32¢ + 4¢ = 36¢
Page 15, Numbers & Coins
Page 11, Fact Families: 6’s
1
a 2+4=6
b 5+1=6
c 2+2+2=6
2 a
b
Note: There is no match for 70¢.
ex
20
_____¢
1
40
_____¢
2
80
_____¢
3
c
10
_____¢
4
3 6, 3, 0, 4
2, 5, 3, 1
1, 2, 0, 4
4 4, 1, 3, 2
3, 6, 4, 0
xii nn Bridges in Mathematics
60
_____¢
10 ten
20 twenty
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
5
50
_____¢
6
30
_____¢
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit One, Session 23 (cont.)
Page 21, Thinking about 5’s
Page 16, Blocks & Apples
1 13 blocks; students’ work will vary.
2 (challenge) $1.25; students’ work will vary.
1
Page 17, Fact Families: 7’s
1
a 3+4=7
b 1+6=7
c 4+3=7
2 a
2
3
4
5
b
1, 3, 4, 5, 7, 8, 9
12, 13, 15, 16, 17, 19, 20
21, 22, 24, 25, 26, 27, 28, 30
31, 32, 33, 34, 36, 38, 39, 40
41, 43, 44, 45, 46, 47, 48, 49
10, 20, 26, 39
15, 10, 30, 45
45, 50, 60, 70, 80, 85, 95
21, 26, 31, 36
Page 22, Shells & Coins
c
1 7 shells; students’ work will vary.
2 (challenge) A dime, a nickel, and 3 pennies;
students’ work will vary.
3 7, 4, 1, 5
3, 6, 4, 2
2, 3, 0, 6
4 4, 2, 1, 3
Page 23, Fact Families: 8’s
1
Page 18, Pennies, Bikes, & Trikes
1 9 pennies; students’ work will vary.
2 (challenge) 2 bikes and 5 trikes; students’ work
will vary.
Page 19, Fingers & Toes
1 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70
2 25, 40, 15, 5, 10, 50, 30
10, 25, 20, 0, 45, 15, 5
3 a 25 toes
b 30 fingers
c 20 toes
d 45 fingers
e (challenge) 9 feet
f (challenge) 7 hands
Page 20, Inchworm’s Garden
From
To
1
2
How Many Inches?
3 inches
4 inches
3
2 inches
4
2 inches
5
3 inches
6
5 inches
© The Math Learning Center
a 4+4=8
b 6+2=8
c 1+7=8
2 a
b
c
3 8, 5, 2, 6
4, 7, 5, 2
3, 4, 1, 2
4 5, 4, 1, 6
Page 24, Inchworm’s Paths
1 Students’ responses will vary.
2 a 6 inches
b 7 inches
c 8 inches
3 Path A is the shortest.
4 Path C is the longest.
5 (challenge) Students’ work will vary. The shortest
path is around 51⁄2 inches, so responses of 5 or 6
inches are acceptable.
Bridges in Mathematics nn xiii
Practice Book
ANSWER KEY
Use after Unit Two, Session 10
2 15, 20, 30, 35, 45, 55, 60, 65
3 30, 15, 38, 46, 60, 20, 30
Page 25, Ella’s Piggy Bank
1
2
3
4
5
dimes
nickels
two
87¢
(challenge) 13¢; students’ work will vary.
Page 30, Ant Paths
1
Page 26, Pets & Coins
1 16 pets; students’ work will vary.
2 (challenge) 4 nickels and 2 dimes; students’ work
will vary.
a
b
c
2 a
b
12 cm
7 cm
6 cm
Path A: 13 cm; Path B: 12 cm; Path C: 15 cm
Students’ responses will vary. Example: I would
use Path B because it’s the shortest and I don’t
have to make any turns.
Page 31, Fact Families: 10’s
Page 27, Fact Families: 9’s
1
a 7+3
b 4+6
c 2+8
2 a
1
a 5+4=9
b 2+7=9
c 8+1=9
2 a
b
b
c
c
3 9, 5, 0, 7
5, 8, 3, 1
4, 6, 2, 3
4 5, 3, 2, 1
3 10, 7, 1, 8
6, 9, 5, 2
5, 4, 3, 0
4 5, 3, 4, 9
Page 28, Fish Problems
Page 32, Ant Story Problems
1 7 are red; students’ work will vary.
2 (challenge) 8 yellow fish and 4 red fish; students’
work will vary.
Page 29, Cubes on a Line
1
ex
a
b
c
Tens
Ones
Tens
Ones
Tens
Ones
Tens
Ones
3
0
1
5
2
0
5
5
d
e
f
6 ants are working hard. Some more come to help.
Now there are 13 ants. How many ants came to help?
7 ants came to help; students’ work will vary.
2 There are 7 ants at the top of the tunnel. There are
4 ants in the middle chamber. There are 5 ants in
the lower chamber. How many ants in all?
There are 16 ants in all; students’ work will vary.
3 There are 6 ants. Each ant has 3 seeds. How many
seeds in all?
There are 18 seeds in all; students’ work will vary.
g
Tens
Ones
Tens
Ones
Tens
Ones
Tens
Ones
6
0
4
5
6
5
3
5
xiv nn Bridges in Mathematics
1
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Two, Session 10 (cont.)
Page 33, Triangle Fact Families
example
7
3+6=9
9-6=3
6+3=9
9-3=6
2
9
1
6
2+7=9 9–2=7
7+2=9 9–7=2
3
2
9
10
8 + 2 = 10 10 – 8 = 2
7
Page 38, Flowers & Oranges
3
2 + 8 = 10 10 – 2 = 8
3
6
6 + 4 = 10 10 – 6 = 4
4
10
1 5 flowers; students’ work will vary.
2 (challenge) 32 orange slices; students work will vary.
Page 39, Telling Time on Two Kinds of Clocks
1
4 + 6 = 10 10 – 4 = 6
4
2
7 + 3 = 10 10 – 7 = 3
2 2, 8, 4, 7, 4, 3, 2
6, 5, 0, 1, 5, 2, 3
1, 3, 3, 1
3 a 2 and 4 (1, 2, and 3 is another solution.)
b 3 and 4 (1, 2, and 4 is another solution.)
c 1, 3, and 4
d 2, 3, and 4
e 1, 2, 3, and 4
10
8
3 + 7 = 10 10 – 3 = 7
a
b
c
d
2 a
3:00
9:30
7:00
4:30
b
Page 34, T-Shirts & Turtles
1 $9.00; students’ work will vary.
2 (challenge) 26 legs; students work will vary.
Page 35, All about Tens
a 6 and 4 should be circled
b 7 and 3 should be circled
c 2 and 8 should be circled
2 a 8 + 2 = 10, 2 + 8 = 10, 10 – 8 = 2, 10 – 2 = 8
b 3 + 7 = 10, 7 + 3 = 10, 10 – 3 = 7, 10 – 7 = 3
c 1 + 9 = 10, 9 + 1 = 10, 10 – 1 = 9, 10 – 9 = 1
3 3, 5, 4, 7, 6, 1, 8
4 7, 5, 10, 1
3, 2, 4, 10
c
1
Page 36, Dollars & Quarters
1 7 more dollars; students’ work will vary.
2 (challenge) 20 quarters; students’ work will vary.
Use after Unit Three, Session 12
Page 37, Facts to 8
1
8, 7, 8, 3, 8, 6, 7
5, 8, 8, 8, 7, 8, 4
7, 8, 8, 6
© The Math Learning Center
d
Page 40, Ladybug Story Problems
1
10 ladybugs were sitting on a leaf. A bird came
and chased 4 of them away. How many ladybugs
were left?
6 ladybugs were left; students’ work will vary.
2 There are 4 ladybugs on the leaf. How many legs
in all? (Ladybugs have 6 legs.)
There are 24 legs in all; students’ work will vary.
3 There were 5 ladybugs on a leaf. Some more ladybugs came. Then there were 12 ladybugs on the
leaf. How many ladybugs came?
7 ladybugs came; students’ work will vary.
Bridges in Mathematics nn xv
Practice Book
ANSWER KEY
Use after Unit Three, Session 12 (cont.)
Page 41, Facts to 9
Page 45, Facts to 10
1
9, 8, 9, 4, 9, 7, 8
9, 7, 9, 8, 9, 8, 8
7, 9, 8, 9
2 3, 9, 4, 8, 4, 4, 5
7, 5, 1, 0, 6, 2, 2
5, 3, 2, 1
3 a 2 and 4
b 3 and 4
c 8
d 2, 3, and 4
e 2 and 8
1
Page 42, Cookies & Apples
Page 46, Snacks
1 8 cookies; students’ work will vary.
2 (challenge) 60 seeds; students’ work will vary.
1 15 granola bars; students’ work will vary.
2 (challenge) 65¢; students’ work will vary.
Page 43, Number Patterns
Page 47, Addition & Subtraction Tables
1
1
10, 9, 10, 5, 10, 8, 9
10, 7, 10, 9, 10, 8, 7
9, 10, 10
2 4, 10, 4, 9, 6, 5, 5
8, 4, 2, 3, 7, 0, 2
6, 4, 1, 3
3 a 3 and 3
b 2, 2, and 3
c 2, 3, and 3
d impossible
e 2, 2, 3, and 3
a–d
a
1
2
3
4
5
6
7
8
9
10
+
2
3
4
5
6
7
11
12
13
14
15
16
17
18
19
20
1
3
4
5
6
7
8
21
22
23
24
25
26
27
28
29
30
2
4
5
6
7
8
9
31
32
33
34
35
36
37
38
39
40
3
5
6
7
8
9
10
41
42
43
44
45
46
47
48
49
50
7
8
9
10
11
52
53
54
55
56
57
58
59
60
4
6
51
5
7
8
9
10
11
12
6
8
9
10
11
12
13
+
3
4
5
6
7
8
3
6
7
8
9
10
11
4
7
8
9
10
11
12
5
8
9
10
11
12
13
6
9
10
11
12
13
14
7
10
11
12
13
14
15
8
11
12
13
14
15
16
0
1
2
3
4
5
–
10
1
2
3
4
5
0
1
2
3
4
1
0
1
2
3
2
0
1
2
3
0
1
4
0
5
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
b
2 14, 17, 40, 51, 62, 78
Page 44, Measuring Ladybug Paths
1
2
3
4
5
6
a Bug A: 13 cm
b Bug B: 9 cm
c Bug C: 7 cm
d Bug D: 5 cm
Bug A
4 cm
8 cm
34 cm; students’ number sentences will vary.
Students’ paths and measurements may vary
slightly. 12 cm give or take a cm either way is
acceptable.
xvi nn Bridges in Mathematics
2 a
0
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Three, Session 12 (cont.)
Page 47, Addition & Subtraction Tables (cont.)
2 b
2 e (challenge) 16, 22, 37, 56
f (challenge) 16, 32, 64, 256, 512
6
7
8
9
–
Page 51, Doubles & Neighbors
16
7
8
9
10
11
0
1
6
7
8
9
10
1
6
7
8
9
2
7
8
3
6
7
4
6
5
6
10 11
ex
7
+7
_____
14
d
Page 48, Comparing Numbers to 100
1
2
3
4
5
47 < 51
18 < 23
36 > 29
71 > 17
34 = 34
Use after Unit Three, Session 24
Page 49, Missing Numbers
1
10, 8, 4
7, 8, 9
6, 1, 3
12, 16, 14
10, 8, 8
2 a 20, 30, 35
b 45, 55, 60
c 28, 38, 43
d 29, 44
e 20, 10, 5
f 17, 7, 2
3 a (challenge) 128, 118, 108, 103; Backward
b (challenge) 347, 362, 367, 377; Forward
c (challenge) 503, 508, 518, 523, 528; Forward
d (challenge) 252, 247, 242, 232, 222; Backward
a 8 red beads; students’ work will vary.
b Students’ responses will vary. Example:
2 a
b
c
d
(challenge) 25, 31, 37
(challenge) 22, 27, 32, 42, 47
(challenge) 10, 5, 0
(challenge) 8, 4, 0
© The Math Learning Center
b
7
+8
_____
15
e
8
+8
_____
16
c
6
+6
_____
12
f
9
+8
_____
17
6
+7
_____
13
g
9
+9
_____
18
10
+9
_____
19
2 5, 6, 4, 5, 3, 4, 2
7, 8, 6, 7, 8, 9, 9
Page 52, The Gym Teacher & Jason at the
School Store
1
a 7 more soccer balls; students’ work will vary.
b 23 soccer balls and footballs; students’ work
will vary.
2 (challenge) Students’ responses will vary. Examples:
• 2 markers and 1 eraser (25¢ + 25¢ + 10¢ = 60¢)
• 3 pencils (20¢ + 20¢ + 20¢ = 60¢)
• 1 marker, 1 pencil, and 1 folder (25¢ + 20¢ + 15¢
= 60¢)
• 1 tablet, 1 eraser, and 1 pencil (30¢ + 10¢ + 20¢
= 60¢)
Page 53, Fast Nines & Fast Tens
1
ex
a
9
+7
_____
16
Page 50, Beads & Patterns
1
a
d
b
9
+3
_____
12
e
9
+5
_____
14
c
6
+9
_____
15
f
4
+9
_____
13
10
+8
_____
18
g
9
+8
_____
17
10
+7
_____
17
Bridges in Mathematics nn xvii
Practice Book
ANSWER KEY
Use after Unit Three, Session 24 (cont.)
Page 53, Fast Nines & Fast Tens
2 6, 7, 2, 3, 5, 6, 8
9, 4, 5, 3, 4, 7, 8
Page 54, Baseball Cards & Teri at the School
Store
1
Andre has 1 more baseball card than James.
Students’ work will vary.
2 (challenge) Students’ responses will vary. Examples:
• 2 markers and 1 pencil (25¢ + 25¢ + 20¢ = 70¢)
• 2 tablets and 1 eraser (30¢ + 30¢ + 10¢ = 70¢)
• 2 pencils and 1 tablet (20¢ + 20¢ + 30¢ = 70¢)
• 1 marker, 1 tablet and 1 folder (25¢ + 30¢ + 15¢
= 70¢)
• 3 folders and 1 marker (15¢ + 15¢ + 15¢ + 25¢
= 70¢)
• 3 pencils and 1 eraser (20¢ + 20¢ + 20¢ + 10¢ =
70¢)
Page 55, Scout Them Out Add & Subtract
1
a +2 facts are underlined.
b +10 facts are not underlined.
8, 11, 10, 7, 9, 19, 6
14, 17, 10, 4, 13, 16, 13
2 a –2 facts are underlined.
b –10 facts are not underlined.
8, 4, 4, 7, 2, 9, 5
11, 7, 2, 6, 12, 8, 9
13, 10, 3, 6, 1, 10, 1
3 a T
b F
c T
d F
e T
f T
Page 56, Extra Facts
1
Neena bought 7 red apples, 8 green apples, and 3
yellow apples. Neena is 12 years old. How many
apples did Neena buy?
18 apples; students’ work will vary.
2 Pedro had 15 dollars. He spent 9 dollars on a book.
His friend had 12 dollars. How much money did
Pedro have left?
6 dollars; students’ work will vary.
xviii nn Bridges in Mathematics
3 The gym teacher had 16 soccer balls. She had
14 footballs. She gave 8 of the soccer balls to the
playground helper. How many soccer balls did she
have left?
8 soccer balls; students’ work will vary.
4 (challenge) The ladybug ate 28 aphids in the morning. Then she took a nap on a leaf for 3 hours. She
ate 34 aphids in the afternoon. How many aphids
did she eat in all?
62 aphids; students’ work will vary.
Page 57, Make Ten Facts
1
a Make 10 facts are underlined.
b Other facts are not underlined.
10, 7, 11, 10, 7, 10, 8
9, 10, 10, 9, 9, 8, 10
7, 10, 10, 10, 10, 4, 9
2 Students’ work will vary.
a 18
b 17
c 20
d 16
e 26
f 20
Page 58, A.M. or P.M.?
1
a 6:00 p.m.
b 7:00 a.m.
c 5:00 p.m.
d 4:00 p.m.
e 8:30 p.m.
f 3:30 p.m.
2 Students’ responses will vary.
Page 59, More Scout Them Outs
1
a Doubles are underlined.
b Neighbors are not underlined.
4, 5, 10, 11, 7, 8, 12
11, 13, 14, 15, 18, 19, 22
6, 7, 16, 24, 25, 26, 27
2 a Half Facts are underlined.
b Take away Tens are not underlined.
5, 5, 3, 9, 3, 7, 2
8, 10, 6, 20, 30, 50, 40
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Three, Session 24 (cont.)
Page 59, More Scout Them Outs (cont.)
Page 63, More Make Ten Facts
3 a
b
c
d
e
f
1
T
T
F
F
F
T
Page 60, Numbers & Words
1 No answer key necessary.
2 a Sixty-nine
b Forty-seven
c One hundred seventy-six
Use after Unit Four, Session 12
a Make 10 facts are underlined.
b Other facts are not underlined.
10, 12, 10, 14, 10, 10, 9
13, 10, 16, 15, 10, 18, 10
20, 10, 10, 5, 7, 10, 19
2 Students’ work will vary.
a 20
b 14
c 29
d 22
3 4, 2, 5, 7
1, 9, 6, 8
Page 64, Using Make Ten Facts to Help Subtract
a
Page 61, Mystery Shapes
1
2
3
4
5
6
Rectangular prism
Sphere
Pyramid
Cylinder
Triangular prism
Cube
6
13 – 7 = ______
+3
10
7
b
+3
13
8
15 – 7 = ______
+5
+3
10
7
c
4
12 – 8 = ______
Page 62, More Extra Facts Practice
+2
+2
8
15
10
12
1
Nick has 3 cats. He had 12 fish. He gave 4 of the
fish to his friend. How many fish does he have left?
He has 8 fish left. Students’ work will vary.
2 Lin’s big sister is 15. She listened to 8 songs on her
CD player in the morning. She listened to 9 more
songs that night. How many songs did she listen to
in all?
Lin’s big sister listened to 17 songs in all. Students’
work will vary.
3 Amber made 9 cupcakes. Then she made 12 more
cupcakes. It took 2 cups of sugar to make the frosting. How many cupcakes did she make in all?
Amber made 21 cupcakes in all. Students’ work
will vary.
4 (challenge) The Green Dragon had 250 gold pieces.
He is 18 feet tall. He is mad because the trolls took
60 of his gold pieces. How many gold pieces does
he have left?
The Green Dragon has 190 gold pieces left.
Students’ work will vary.
© The Math Learning Center
Page 65, Symmetry
1
a&b
square
circle
scalene triangle
rectangle
pentagon
ellipse
right triangle
trapezoid
2
example
a
An equilateral triangle
An isosceles trapezoid
3
has ______
lines of symmetry.
1
has ______
lines of symmetry.
b
c
A rhombus
A hexagon
2 lines of symmetry.
has ______
6 lines of symmetry.
has ______
Bridges in Mathematics nn xix
Practice Book
ANSWER KEY
Use after Unit Four, Session 12 (cont.)
Page 66, The Shapes Shop
Page 72, Comparing Numbers to 300
1
a 10¢
b 4¢
c 5¢
2 74¢; students’ work will vary.
3 Students’ responses will vary.
1
Page 67, Thinking about Place Value
Page 73, Fact Family Triangles
1 No answer key necessary
2 a Two hundred eight
b One hundred fourteen
c Two hundred sixteen
a 244 > 229
b 183 < 209
2 67, 107, 113, 204, 261
Use after Unit Four, Session 25
example
12
a
b
c
2 a
b
30¢ or $0.30
60¢ or $0.60
71¢ or $0.71
Dime, 10¢ or $0.10, students’ responses will vary
Quarter, 25¢ or $0.25, students’ responses will vary
a
b
c
d
e
Subtract 2’s are underlined
Subtract Halves are circled
Takeway 10’s are in bold font
Runaway 1’s are in italic
Any facts that don’t fit one of the four types
listed in a–d are shown in regular font.
13, 8, 10, 8, 7, 6, 10
10, 9, 7, 9, 8, 10, 17
9, 5, 14, 9, 11, 10, 6
7, 4, 2, 6, 6, 3, 10
60, 73, 70, 80, 27, 90, 40
Page 70, Sara’s Pockets
1 2 nickels and 2 dimes; students’ work will vary.
2 1 dime, 2 nickels, and 4 pennies; students work
will vary.
Page 71, Halves
1
a First choice
b Second choice
c Third choice
2 5, 8, 10, 6, 7, 9, 3
20, 30, 12, 15, 40, 50, 11
200, 300, 100, 60, 90, 80, 70
xx nn Bridges in Mathematics
13 – 4 = 9
13 – 9 = 4
5
7
11
5 + 7 = 12
7 + 5 = 12
12 – 5 = 7
12 – 7 = 5
9 + 6 = 15
6 + 9 = 15
15 – 9 = 6
15 – 6 = 9
6 + 5 = 11
5 + 6 = 11
11 – 6 = 5
11 – 5 = 6
6
5
2
13
4
9
3
14
Page 69, Subtraction Strategies
1
9 + 4 = 13
1
Page 68, Two Different Ways to Write Money
Amounts
1
4 + 9 = 13
6
8
4
15
6 + 8 = 14
8 + 6 = 14
14 – 6 = 8
14 – 8 = 6
9
6
Page 74, Bowls & Vans
1 4 little fishbowls; students’ work will vary.
2 (challenge) 6 vans; students’ work will vary.
Page 75, Puzzles about Ten & More
1
a 10
b 4
c 8
d 3
e 6
f 3
g 2
h 3
2 10, 3, 5
10, 7, 6
5, 4, 7
3 (challenge) 40, 5, 127
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Four, Session 25 (cont.)
Page 76, Another Trip to the Shapes Shop
Page 80, Ants & the Number Box
1
1
The shape picture costs 55¢. Any coin combination worth 55¢ is acceptable. Examples: 2 quarters
and 1 nickel; 1 quarter, two dimes, two nickels; or 2
quarters and 5 pennies.
2 Students’ responses will vary.
Page 77, Make Tens to Subtract
1
a
7
14 – 7 = ______
+3
+4
7
b
7
16 – 9 = ______
c
7
13 – 6 = ______
9
1
60, 48, 55, 76, 89, 63, 36
29, 31, 91, 47, 50, 82, 37
2 65, 45, 32, 89, 77, 8, 11
37, 4, 41, 29, 18, 67, 84
14
+6
10
+4
6
d
Page 81, Adding & Subtracting Tens
10
+1
16
+3
10
6
14 – 8 = ______
Page 82, Apples & Snow People
1 35 seeds; students’ work will vary.
2 (challenge) 84 stones; students’ work will vary.
13
+2
8
a 20; students’ work will vary.
b 10; students’ work will vary.
2 a (challenge) 4 and 17 or 18 and 3 or 5 and 16 or
11 and 10
b (challenge) 18 and 11 or 23 and 6 or 12 and 17
c (challenge) 16 and 6
d (challenge) 17 and 3 or 18 and 4
e (challenge) 3, 4, 5, and 6
+4
10
Page 83, Half & Half
14
1
Page 78, Books & Granola Bars
1 15 books; students’ work will vary.
2 a (challenge) 50¢; students’ work will vary.
b (challenge) $1.00; students’ work will vary.
c (challenge) $2.50; students’ work will vary.
Page 79, More Fact Family Triangles
a
b
c
d
2
a
example
14
4 + 7 = 11
7 + 4 = 11
11 – 4 = 7
11 – 7 = 4
8 + 5 = 13
5 + 8 = 13
13 – 8 = 5
13 – 5 = 8
9
b
5
c
1
13
6
7
2
11
9 + 3 = 12
3 + 9 = 12
12 – 9 = 3
12 – 3 = 9
9 + 5 = 14
5 + 9 = 14
14 – 9 = 5
14 – 5 = 9
6 + 7 = 13
7 + 6 = 13
13 – 6 = 7
13 – 6 = 7
7
4
3 Students’ work will vary. Examples:
a
b
c
d
3
12
9
Page 84, Sharing Stories
3
4
13
© The Math Learning Center
8
1 8 shells; students’ work will vary.
2 (challenge) 7 marbles; students’ work will vary.
5
Bridges in Mathematics nn xxi
Practice Book
ANSWER KEY
Use after Unit Five, Session 17
Page 85, Missing Numbers
Page 87, Tens & Ones
1
1
example
12
7
5
a
12
4
8
2
example
5 + 7 = 12
7 + 5 = 12
12 – 5 = 7
12 – 7 = 5
10’s
1’s
3
6
15
6
9
c
15
8
7
Dimes
Pennies
2
1
Equation
Equation
30 + 6 = 36
a
4 + 8 = 12
8 + 4 = 12
12 – 4 = 8
12 – 8 = 4
10’s
1’s
5
2
20¢ + 1 ¢ = 21¢
a
9 + 6 = 15
6 + 9 = 15
15 – 9 = 6
15 – 6 = 9
b
10’s
1’s
7
1
8 + 7 = 15
7 + 8 = 15
15 – 8 = 7
15 – 7 = 8
c
10’s
1’s
7
0
Pennies
3
2
30¢ + 2¢ = 32¢
b
Dimes
Pennies
5
1
Equation
50¢ + 1¢ = 51¢
Equation
70 + 1 = 71
Dimes
Equation
Equation
50 + 2 = 52
b
example
c
Dimes
Pennies
7
5
Equation
Equation
70 + 0 = 70
d
2 16, 9, 6
5, 5, 8
3 (challenge) 81, 19, 38
10’s
1’s
4
7
Equation
70¢ + 5¢ = 75¢
d
Dimes
Pennies
1
5
Equation
40 + 7 = 47
10¢ + 5¢ = 15¢
Page 86, Pet Shop Equations
1
Page 88, Nuts & Carrots
a
The pet shop owner had 14 hamsters. She sold
5 of them on Monday and 3 of them on Tuesday.
How many hamsters does she have left?
b
There were 12 puppies in the pen. The pet shop
owner sold some of them. Now there are 7 puppies
in the pen. How many puppies did she sell?
c
The pet shop owner got 9 rabbits yesterday. A
family came in and bought 2 of them. Then the
shop owner got 8 more rabbits. How many rabbits
does she have now?
15
9 – 2 + 8 = ______
6
14 – 5 – 3 = ______
7
6 + ______
= 13
5 =7
12 – ______
d
There were 16 fish in the big tank. The shop owner moved some of them. Now there are only 9 fish in
the big tank. How many did the shop owner move?
e The shop owner had 6 kittens. Then she got
some more kittens. Now she has 13 kittens. How
many kittens did she get?
2 (challenge)
11, 15
54, 16
25, 300
324, 23
53, 474
7
16 – ______
=9
1 37 nuts; students’ work will vary.
2 (challenge) 21 carrots; students’ work will vary.
Page 89, Different Ways to Look at 300
1
a 3 hundreds
b 30 tens
c 300 ones
2 30 groups of 10 labeled 10, 20, 30, 40, 50, 60, 70, 80,
90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190,
200, 210, 220, 230, 240, 250, 260, 270, 280, 290, and
300. Students’ work will vary.
Page 90, Different Ways to Look at the Same
Number
1
2
3
4
3 hundreds, 31 tens, 310 ones
3 hundreds, 35 tens, 350 ones
2 hundreds, 23 tens, 230 ones
2 hundreds, 29 tens, 290 ones
Page 91, Time & Money Problems
1
xxii nn Bridges in Mathematics
a
b
c
d
2 quarters, 1 nickel, and 1 penny
2 quarters, 1 dime, 1 nickel, and 1 penny
1 quarter and 4 pennies
(challenge) 5 quarters, 1 nickel, and 4 pennies
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Five, Session 17 (cont.)
Page 91, Time & Money Problems (cont.)
Page 95, Shopping Problems
2 a 6:15
b 3:30
c 2:15
3 a
1 72¢, students’ work will vary.
2 (challenge) 4 apples, students’ work will vary.
Page 96, Base Ten Subtraction
b
1
2
3
4
5
6
7
8
9
c
16
20
17
8
25
15
14
12
15
Page 97, Coin Problems
Page 92, Hundreds, Tens & Ones
1
a 2 hundreds, 24 tens, 247 ones
b 3 hundreds, 31 tens, 318 ones
2
a
b
c
d
5 hundreds + 2 tens + 9 ones
420 ones
42 tens
52 tens + 9 ones
30 tens + 9 ones
2 hundreds + 14 tens + 9 ones
3 hundreds + 49 ones
1 hundred + 20 tens + 9 ones
Page 93, Shopping & the Number Box
1 10¢; students’ work will vary.
2 a (challenge) 32 and 8
b (challenge) 15 and 3
c (challenge) 10 and 8
d (challenge) 20 and 32 or 15 and 3 or 20 and 8
e (challenge) 20, 24, and 32
f (challenge) 76; students’ work will vary.
Page 94, Base Ten Addition
1
2
3
4
5
6
7
8
9
10
38
42
51
51
39
53
41
54
39
32
© The Math Learning Center
1 63¢; students’ work will vary.
2 (challenge) 14¢ each; students’ work will vary.
Use after Unit Five, Session 35
Page 98, Adding & Subtracting Tens & Nines
1
50, 49, 65, 64, 88, 87, 87
26, 25, 82, 81, 54, 53, 76
2 20, 21, 36, 37, 71, 72, 23
25, 26, 19, 20, 65, 66, 28
3 a 4:15
b 1:45
c 7:30
d 10:15
Page 99, Wheels
1 44 wheels; students’ work will vary.
2 (challenge) first solution: 6 wagons and 1 trike,
second solution: 3 wagons and 5 trikes
Page 100, Place Value Practice
1
a
b
c
d
e
f
g
h
32 = 30 + 2
75 = 70 + 5
18 = 10 + 8
74 = 70 + 4
28 = 20 + 8
93 = 90 + 3
45 = 40 + 5
67 = 60 + 7
Bridges in Mathematics nn xxiii
Practice Book
ANSWER KEY
Use after Unit Five, Session 35 (cont.)
Page 100, Place Value Practice (cont.)
Page 104, Numbers & Clocks
2 68, 23, 59
85, 57, 28
74, 63, 69
49, 76, 37, 54, 91, 55, 82
3 a Hundreds place
b Tens place
c Ones place
d Hundreds place
1
Page 101, Pencil Puppy & Pal
1
a 64
b 73
2 a 35
b 47
3 72 pencils; students’ work will vary.
a 300 + 40 + 2
b 200 + 70 + 3
c 200 + 20 + 9
d 400 + 60 + 1
e 600 + 10 + 8
f 157 = 100 + 50 + 7
g 999 = 900 + 90 + 9
h 835 = 800 + 30 + 5
2 138, 229, 273, 342, 461, 618
3 a
b
c
d
Page 102, 2-Digit Addition
1
a
b
2 a
b
c
d
e
62
53
40 + 30 = 70, 8 + 4 = 12, 70 + 12 = 82
50 + 20 = 70, 8 + 8 = 16, 70 + 16 = 86
20 + 60 = 80, 5 + 9 = 14, 80 + 14 =94
30 + 50 = 80, 4 + 9 = 13, 80 + 13 = 93
40 + 40 = 80, 5 + 6 = 11, 80 + 11 = 91
Page 103, More Facts Than You Need
1
Akiko has 27 marbles. Sara has 53 marbles. Sam
has 24 marbles. How many marbles do Sara and
Sam have in all?
77 marbles; students’ work will vary.
2 Jenny has 12 toy people. She is building a house
for them. She used 12 blocks for the front gate,
and 48 blocks for the rest of the house. How many
blocks did Jenny use in all?
60 blocks; students’ work will vary.
3 Juan had 56 crayons. He gave 23 of his crayons to
his friend. Juan also gave his friend 15 marking
pens. How many crayons does Juan have left?
33 crayons; students’ work will vary.
4 (challenge) The Toy Factory made 90 robots on
Tuesday. 23 people work at the factory. They sold
54 of the robots on Wednesday. How many robots
did they have left?
36 robots; students’ work will vary.
xxiv nn Bridges in Mathematics
Page 105, Sam’s Hot Dog Stand
1
a Saturday
b Thursday
c 288 hotdogs
2 a 325 > 108
b 108 < 119
c 234 > 164
d 163 < 345
e 325 > 234
3 108, 119, 125, 163, 234, 325, 345
4 (challenge) 1,419 hotdogs; students’ work will vary.
Page 106, 2-Digit Subtraction
1
c
Note students’ work on number line will vary.
See example below.
a
45 – 17
+20
+3
+5
20
17
40
45
3 + 20 + 5 = 28
28
___________________
so 45 – 17 = ______
b
54 – 25
+20
+5
25
+4
30
50
54
5 + 20 + 4 = 29
29
___________________
so 54 – 25 = ______
c
57 – 18
+30
+2
18
+7
50
20
57
2 + 30 + 7 = 39
39
___________________
so 57 – 18 = ______
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Five, Session 35 (cont.)
Page 107, The Pet Graph
1
a
b
c
d
2 a
b
2 a 15
b 30
c 25 Students’ explanations will vary. Example:
50 – 24 is almost like 50 – 25, and the answer to
that is 25.
d 30 Students’ explanations will vary. Example:
60 – 29 is almost like 60 – 30, and the answer to
that is 30.
Dogs
7 kids
6 kids
5 + 2 + 8 + 12 = 27 kids
9 kids; students’ work will vary.
17 kids; students’ work will vary.
Page 108, More 2-Digit Addition
Page 111, Estimation Problems
1
a 41
b 48
2 78, 47, 46, 33
3 a 70 + 12 = 82
b 60 + 12 = 72
c 30 + 8 = 38
d 80 + 10 = 90
e 80 + 11 = 91
1
2
3
4
5
Page 112, Adding & Subtracting Practice
1
Page 109, More 2-Digit Subtraction
2 & 3 Note students’ work on number line will vary.
Example shown below.
1
60 – 32
+8
32
+20
60
40
15, 18, 17, 16, 16, 19, 13
12, 17, 20, 17, 14, 14, 11
29, 52, 38, 75, 47, 98, 94
49, 52, 88, 82, 79, 93, 85
2 6, 7, 3, 4, 8, 9, 10
40, 20, 20, 20, 40, 50, 20
16, 25, 58, 34, 15, 18, 38
Page 113, Grandma’s Button Box
8 + 20 = 28
28
___________________
so 60 – 32 = ______
2
1
54 – 27
+24
+3
27
$17.00
$20.00
30 squares
35 books
300 cans
30
Students’ graph titles and graph marking methods
will vary. Example:
Grandma’s Button Box
Title _________________________________
54
30
3 + 24 = 27
27
___________________
so 54 – 27 = ______
3
71 – 26
28
26
+41
+4
24
26
30
71
4 + 41 = 45
45
___________________
so 71 – 26 = ______
Number of Buttons
22
20
18
16
14
12
10
8
Use after Unit Six, Session 13
6
4
2
© The Math Learning Center
Black
Purple
Blue
White
a 60
b 50
c 90 Students’ explanations will vary. Example:
40 + 30 is 70 and 9 + 9 is 18. That’s almost up to 90.
d 60 Students’ explanations will vary. Example:
30 + 20 is 50 and 7 + 4 = 11. That’s just one
more than 60 if you add them up.
Gold
1
0
Red
Page 110, Which Makes the Most Sense?
Button Color
2 102 buttons; students’ work will vary.
Bridges in Mathematics nn xxv
Practice Book
ANSWER KEY
Use after Unit Six, Session 13 (cont.)
Page 114, 2-Digit Addition Practice
1
a 42
b 60
2 29, 49, 48, 37
3 a 50 + 13 = 63
b 80 + 11 = 91
c 60 + 13 = 73
d 90 + 7 = 97
e 50 + 17 = 67
Page 115, Lines & Buttons
1
a
b
c
2 a
b
c
Students’ work will vary.
12 children, including Tami
Students’ responses will vary.
(challenge) Students’ work will vary.
(challenge) 3 of the 8 buttons have 4 holes.
5 of the 8 buttons have 2 holes.
(challenge) Students’ responses will vary.
Page 116, Time & Money
1
a
b
c
d
2 a
b
3 a
b
4:25
1:55
7:45
5:05
76¢
$1.00
2 quarters, 50¢, $0.50, half a dollar
$0.25, 25¢
Page 117, Cubes & Homework
1
a Students’ work will vary.
b There are 7 cubes in one stack and 3 cubes in
the other stack.
c Students’ responses will vary.
2 a (challenge) Students’ work will vary.
b (challenge) 45 marbles
c (challenge) Students’ responses will vary.
Page 118, More Place Value Practice
1
a
b
c
d
2 a
b
50, 60, 70, 90, 120, 130
250, 240, 220, 210, 190, 180
233, 243, 263, 273, 283, 303
527, 517, 497, 477
400, 500, 600, 800, 900
650, 550, 450, 250, 150
xxvi nn Bridges in Mathematics
2 c 503, 603, 703, 903
d 614, 514, 314, 214, 114
3 472, 628
855, 113
259, 381, 742, 260, 444, 117, 999
4 a Hundreds place
b Ones place
c Tens plans
Page 119, Homework & 100
1
Students’ responses will vary. Examples: 12 + 12
= 24, How many eggs in 2 dozen? How many doughnuts in 2 dozen? 30 – 6 = 24, 20 + 4 = 24
2 (challenge) Students’ responses will vary. Examples: 90 +30 = 120, 80 + 40 = 120, 130 – 10 = 120,
140 – 20 = 120, 2 × 60 = 120, 3 × 40 = 120, 240 ÷ 2
= 120, 360 ÷ 3 = 120, 50 + 50 + (24 – 4) = 120
Page 120, 2-Digit Subtraction Practice
1 27; students’ work will vary.
2 34; students’ work will vary.
3 44; students’ work will vary.
Page 121, Make Your Own Problems
1
2
3
4
5
85; students’ work will vary.
57; students’ work will vary.
46; students’ work will vary.
29; students’ work will vary.
27; students’ work will vary.
Use after Unit Seven, Session 14
Page 122, Solving Equations
1
a 8
b 8
c 6
d 9
e 7
f 3
g 3
2 90, 30, 20
60, 25, 45
40, 50, 60
55, 20, 50
3 (challenge) 244, 143, 50
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Seven, Session 14 (cont.)
Page 123, Apples & Orange Slices
2 Student work will vary. Examples:
1 48 apples; students’ work will vary.
2 (challenge) 144 seeds; students’ work will vary.
a
b
Page 124, The Second Graders Clean Their Desks
1
Students’ graph titles and methods of marking the
graph will vary. Example:
2
4
c
3
4
d
Extra Things in Kids’ Desks
Title _________________________________
45
42
39
1
6
36
Number of Extra Things
33
30
Page 127, The Army Ants Measure Up
27
24
1 Students’ responses will vary.
2 15 army ants
3 Students’ responses will vary.
21
18
15
12
9
6
Page 128, Place Value Review
3
Books
1
Erasers
Glue Sticks
Scissors
Pencils
0
Extra Things
2 29 pencils; students’ work will vary.
3 (challenge) 98 extra things; students’ work will vary.
Page 125, Measuring Problems
1
a
b
c
d
2 a
b
c
d
Students’ responses will vary.
13 cm, 15 cm
Line A
2 cm; students’ work will vary.
Students’ responses will vary.
20 cm, 25 cm
Crooked Line D
5 cm; students’ work will vary.
Page 126, Fractions
1
a
b
c
d
3
6
⁄2
⁄4
1
⁄3
3
⁄4
1
1
a hundreds, 700
b ones, 3
c tens, 50
d hundreds, 600
2 a 85 > 58
b 327 < 372
c 106 < 610
d 218 = 218
e 735 > 573
f 204 < 240
g 483 > 438
3 a–g Students’ responses will vary.
Page 129, More about Meters
1
2
3
4
5
6
7
Students’ responses will vary.
Students’ responses will vary.
10 seconds
Students’ responses will vary. Examples: snail, slug
Meters
Centimeters
(challenge) Shorter by 32 centimeters; students’
work will vary.
Page 130, Adding & Subtracting
1
86, 73, 68, 88, 77, 68, 76
378, 126, 894, 375, 390, 457, 150
2 a 91; students’ work will vary.
b 262; students’ work will vary.
© The Math Learning Center
Bridges in Mathematics nn xxvii
Practice Book
ANSWER KEY
Use after Unit Seven, Session 14 (cont.)
Page 130, Adding & Subtracting (cont.)
Page 136, Enough Time in the Day
3 80, 30, 41, 51, 20, 30, 25
4 25; students’ work will vary.
1
a
b
c
d
Page 131, Crayons
1 21¢; students’ work will vary.
2 88 crayons; students’ work will vary.
3 No; students’ responses will vary. Example: 99¢ is
only 1 penny away from $1.00, so $1.50 + 99¢ would
be way more than $2.00.
Page 132, Pedro’s Birthday
1
2
3
4
5
Tuesday
April 3; students’ explanations will vary.
21 days in three weeks; students’ work will vary.
72 hours in three days; students’ work will vary.
a 3 hours
b 180 minutes; students’ work will vary.
Page 133, More Crayon Problems
1 42¢; students’ work will vary.
2 (challenge) $8.60; students’ work will vary.
Use after Unit Seven, Session 25
Page 134, Digits & Number Riddles
1
2 15 minutes
3 4 hours
4 240 minutes; students’ work will vary.
Page 137, More Toy Store Problems
1 $7.98; students’ work will vary.
2 (challenge) 5 kids; students’ work will vary.
Page 138, More Fractions
1
a
b
c
d
2 a
b
⁄4
⁄3
3
⁄4
4
⁄6
3
⁄6 (1⁄2 also acceptable) students’ work will vary.
1
⁄4 ; students’ work will vary.
2
2
Page 139, Pizza Problems
5 is in the ones place.
____
8 is in the tens place.
____
a
289
9 is in the ones place.
____
b
945
4 is in the tens place.
____
2 is in the hundreds place.
____
5 is in the ones place.
____
1 is in the tens place.
____
c
e
316
5,687
3 is in the hundreds place.
____
9 is in the hundreds place.
____
d
405
0 is in the tens place.
____
6 is in the ones place.
____
4 is in the hundreds place.
____
8 is in the tens place.
____
1 is in the ones place.
____
7 is in the ones place.
____
5 is in the thousands place.
____
f
4,301
6 is in the hundreds place.
____
3 is in the hundreds place.
____
0 is in the tens place.
____
4 is in the thousands place.
____
2 a (challenge) 147
b (challenge) 3,702 or 3,700
Page 135, The Toy Store
1 $37.00; students’ work will vary.
2 (challenge) Skates, puppet, and soccer ball;
students’ work will vary.
xxviii nn Bridges in Mathematics
1 David
2 (challenge) David
Page 140, Reading & Writing Numbers
1
a 286 = 200 + 80 + 6
b 753 = 700 + 50 + 3
c 621 = 600 + 20 + 1
d 347 = 300 + 40 + 7
e 917 = 900 + 10 + 7
f 160 = 100 + 60
g 804 = 800 + 4
2 528, 222, 171
719, 847, 503
291, 319, 226, 452, 999, 341, 418
3 a 306
b 217
© The Math Learning Center
Practice Book
ANSWER KEY
Use after Unit Seven, Session 25 (cont.)
Page 141, How Long Is a Shark?
Page 145, Breanna’s Pockets
1 Thresher shark
2 Night Shark
3 a >
b <
4 154 cm, 174 cm, 204 cm, 247 cm, 312 cm, 373 cm
5 126 cm; students’ work will vary.
1
2
3
4
Page 142, Addition & Subtraction Practice
1
43, 58, 88, 66, 100, 68, 70
299, 360, 597, 240, 350, 351, 500
2 a 94; students’ work will vary.
b 270; students’ work will vary.
3 40, 40, 44, 25, 30, 15, 25
4 Students’ responses and work will vary. Answers
to the 4 problems are shown below.
20, 25, 34, 24
5
6
Pocket B has 59¢
Pocket C has 83¢
Pocket D has 56¢
Pocket C
Pocket D
Student responses will vary. Example: No, because
59 and 56 is just a little more than a dollar. 77 and 83
are each both less than a dollar. I don’t think it will
add up to $3.00.
$2.75; students’ work will vary.
(challenge) $1.88; students’ work will vary.
Page 143, Maria Jose’s Day
Event
a
Time
A.M. or P.M.
Clock
Breakfast
A.M.
7:05
b
P.M.
Arrive at School
A.M.
8:15
c
P.M.
Lunch
A.M.
11:55
d
P.M.
Soccer Practice
A.M.
4:10
e
P.M.
Dinner
A.M.
6:30
P.M.
Page 144, More Number Patterns
1
a
b
c
d
45, 65, 85, 95, 105
24, 30, 42, 48, 54, 72
120, 125, 135, 140, 150
313, 513, 713, 813, 913
2
Feet
1
2
3
4
5
6
7
8
9
Inches
12
24
36
48
60
72
84
96
108
3 (challenge) 9 yards; students’ work will vary.
© The Math Learning Center
Bridges in Mathematics nn xxix
PracticeBookUse anytime after Bridges,Unit 1, Session 12.
NAME
DATE
Numbers&Words,11–20
1Tracethewordsandnumbers.Thendrawalinetothematchingset.
eleven 1111
twelve 1212
thirteen 1313
fourteen 1414
fifteen 1515
sixteen 1616
seventeen1717
eighteen 1818
nineteen 1919
twenty 2020
2Fillinthemissingnumbersonthelinebelow.
11
© The Math Learning Center
13
15
17
Bridges in Mathematics nn 1
PracticeBookUse anytime after Bridges,Unit 1, Session 12.
NAME
DATE
Apples&Shapes
1Therewere3applesonthetable.Janput6moreapplesonthetable.How
manyappleswereonthetableinall?Showyourwork.
Therewere______applesonthetableinall.
CHALLENGE
2Makeapicturethatisworth24¢.Youcanonlyusetheseshapes.Labelyour
picture.Provethatitisworth24¢.
Square–5¢
2 nn Bridges in Mathematics
Circle–4¢
Triangle–3¢
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
Adding&Subtracting0’s,1’s,&2’s
1Add.Countthedotstohelp.
5
+0
____
4
+2
____
3
+2
____
6
+1
____
3
+0
____
2
+2
____
1
+4
____
2
+5
____
1
+5
____
0
+6
____
3
+1
____
6
+2
____
5
2Subtract.Crossoutthedotstohelp.
5
–2
____
4
–2
____
3
–2
____
6
–1
____
3
–0
____
2
–2
____
4
–1
____
5
–0
____
5
–1
____
6
–0
____
3
–1
____
6
–2
____
3
© The Math Learning Center
Bridges in Mathematics nn 3
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
Dollars&Dimes
1Marcohas6dollars.Howmanymoredollarsdoesheneedtohave10dollars
altogether?Showyourwork.
Marconeeds_________dollarstohave10dollarsaltogether.
CHALLENGE
2Katyhas5dollars.Howmanymoredimesdoessheneedtohave8dollars
altogether?Showyourwork.
Katyneeds_______moredimestohave8dollarsaltogether.
4 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
AddingDoubles&Neighbors
1Add.
0
+0
____
0
+1
____
1
+1
____
1
+2
____
2
+2
____
2
+3
____
3
+3
____
3
+4
____
4
+4
____
4
+5
____
5
+5
____
10
+10
____
2Findthesums.Makedotsintheframestoshowtheanswers.
7
ex4+3=_____
a3+2=_____
b5+4=_____
c4+4=_____
d4+3=_____
e5+5=_____
f2+3=_____
g4+5=_____
h2+2=_____
© The Math Learning Center
Bridges in Mathematics nn 5
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
Fish&FarmProblems
1Gushadsomefish.Hegot6morefishatthepetstore.Nowhehas11fish.How
manyfishdidGushavetostartwith?Showyourwork.
Gusstartedoutwith___________fish.
CHALLENGE
2Mrs.Joneshasducksandsheeponherfarm.Theanimalshaveatotalof6
headsand16legs.HowmanyducksdoesMrs.Joneshave?Howmanysheepdoes
Mrs.Joneshave?Showyourwork.
Mrs.Joneshas_____________ducksand___________sheep.
6 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
NumberLines&CountingPatterns
1Practicewritingeachnumeraltwice.
10 11 12 13 14 15 16 17 18 19
2Fillinthemissingnumbersoneachnumberlinebelow.
a
13
14
17
15
20
25
16
18
22
3
5
9
19
b
45
c
d
© The Math Learning Center
Bridges in Mathematics nn 7
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
BaseballCards &Darts
1Jameshad13baseballcards.Hegave6tohisbrother.Howmanybaseball
cardsdoesJameshavenow?Showyourwork.
Jamesnowhas____________baseballcards.
CHALLENGE
2Maithrew3dartsattheboard.Allthreeofthemstuckintheboard.Whatare
allthedifferentscoresshecouldget?Showyourwork.
4 2 1
8 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
Thinkingabout2’s
1Fillinthemissingnumbers.Thencolorinthecount-by-twosnumbers,starting
with2(2,4,6,8,andsoon).
1
4
12
9
15
20
24
27
33
36
38
2Add:
6+2=_____
2+10=_____
24+2=_____
2+12=_____
18+2=_____
30+2=_____
14+2=_____
8+2=_____
8–2=_____
12–2=_____
16–2=_____
10–2=_____
28–2=_____
36–2=_____
24–2=_____
40–2=_____
3Subtract:
4Fillintheblanks.
a
9 leaf cutter ants
b12butterflies
c7elephants
How many antennae in all? Howmanywingsinall? Howmanyearsinall?
__________
© The Math Learning Center
__________
__________
Bridges in Mathematics nn 9
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
Fish&MoneyProblems
1Therewere13fishinthetank.Thecatatesome.Nowthereareonly9fishin
thetank.Howmanydidthecateat?Showyourwork.
Thecatate____________fish.
CHALLENGE
2Finddifferentwaystomake23¢.Finishthechart.Besuretofillineverybox.
Dimes
Nickels
Pennies
exa
2
0
3
exb
1
2
3
a
1
1
b
1
0
c
0
4
d
0
e
0
f
0
g
0
10 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
FactFamilies6’s
1Writeanequationtomatcheachcubetrain.
3+3=6
example_______________
a_______________
b_______________
c_______________
2Colorinthecubetraintomatchtheequation.
example4+2=6
a3+2+1=6
b1+5=6
c1+4+1=6
3Subtract:
6–0=_____
5–2=_____
5–5=_____
6–2=_____
6–4=_____
6–1=_____
6–3=_____
5–4=_____
6–5=_____
5–3=_____
6–6=_____
5–1=_____
4Fillinthemissingnumbers.
2+_____=6
_____+5=6
6=3+_____
6=4+_____
3+_____=6
_____+0=6
6=2+_____
6=6+_____
© The Math Learning Center
Bridges in Mathematics nn 11
PracticeBookUse anytime after Bridges, Unit 1, Session 12.
NAME
DATE
Crayons&Coins
1Johnhadsomecrayons.Hegave5toJen.Nowhehas7crayonsleft.How
manycrayonsdidJohnhavetostartwith?Showyourwork.
Johnstartedoutwith____________crayons.
CHALLENGE
2Hereare3clues:
•Kendrahas5coins.
•Shehas35¢.
•Sheonlyhasnickelsanddimes.
HowmanynickelsdoesKendrahave?HowmanydimesdoesKendrahave?Show
yourwork.
Kendrahas______nickels.Kendrahas______dimes.
12 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Dominoes&CountingPatterns
1Fillinthemissingnumberstocompletetheadditionfacts.

+

+
7


+
9

+
1 0
8
2Fillinthemissingdotsandnumberstocompletetheadditionfacts.
2


5
+
6
+
8
+

+ 3
7
1 2
3Makeupyourowncombinationsforthesenumbers.Fillinthedotsandnumbers.
+


1 0

+
9

+

+
5
7
4Fillinthemissingnumberstocompletethepattern.
aSkip-countupby2’s.
bSkip-countupby2’s.
22,24,26,_____,_____,_____
27,29,31,_____,_____
cSkip-countdownby2’s.
dSkip-countdownby2’s.
19,17,15,_____,11,_____
43,41,_____,_____,35
© The Math Learning Center
Bridges in Mathematics nn 13
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Fish&Pictures
1Timhas12fish.7areyellowandtherestarered.HowmanyredfishdoesTim
have?Showyourwork.
Timhas_______redfish.
CHALLENGE
2Makeapicturethatisworth36¢.Youcanonlyusetheseshapes.Labelyour
picture.Provethatitisworth36¢.
Square–5¢
14 nn Bridges in Mathematics
Circle–4¢
Triangle–3¢
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Numbers&Coins
Penny 1¢
Nickel 5¢
Dime 10¢
Tracethenumbersandwords.Thendrawalinetothematchingsetofcoinsand
fillinthecorrectamountofmoney.Onenumberdoesnothaveamatchingset.
ex
10ten
20twenty
30thirty
40forty
50fifty
60sixty
70seventy
80eighty
20
_____¢
1
_____¢
2
_____¢
3
_____¢
4
_____¢
5
_____¢
6
_____¢
© The Math Learning Center
Bridges in Mathematics nn 15
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Blocks&Apples
1Rosahas6blocks.Erichas7moreblocksthanRosa.Howmanyblocksdoes
Erichave?Showyourwork.
Erichas__________blocks.
CHALLENGE
24applescost$1.00.HowmuchwillJennyhavetopayfor5apples?Show
yourwork.
Jennywillhavetopay__________for5apples.
16 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
FactFamilies7’s
1
Write an equation to match each cube train.
example
b
2
_______________
3
a
_______________
c
_______________
Color in the cube train to match the equation.
example
b
5+2=7
_______________
2+2+3=7
1+3+3=7
a
2+5=7
c
7+0=7
Subtract:
7 – 0 = _____
6 – 2 = _____
7 – 6 = _____
7 – 2 = _____
7 – 4 = _____
7 – 1 = _____
7 – 3 = _____
6 – 4 = _____
7 – 5 = _____
6 – 3 = _____
7 – 7 = _____
7 – 1 = _____
7 = 6 + _____
7 = 4 + _____
4
Fill in the missing numbers.
3 + _____ = 7
© The Math Learning Center
_____ + 5 = 7
Bridges in Mathematics nn 17
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Pennies,Bikes,&Trikes
1Tammyhas14pennies.Troyhas5pennies.Howmanymorepenniesdoes
TammyhavethanTroy?
Tammyhas_________morepenniesthanTroy.
CHALLENGE
2Therearesomebikesandtrikesontheplayground.Thereare7seatsand19
wheels.Howmanybikesarethere?Howmanytrikesarethere?Showyourwork.
Thereare________bikesontheplayground.
Thereare_________trikesontheplayground.
18 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Fingers&Toes
1Writethe5’scountingpatternto70undertheten-framesbelow.Thefirst3
numbershavebeendoneforyou.
5
10
15
2Practiceaddingandsubtracting5’s.
20
+5
_____
35
+5
_____
10
+5
_____
0
+5
_____
5
+5
_____
45
+5
_____
25
+5
_____
15
–5
_____
30
–5
_____
25
–5
_____
5
–5
_____
50
–5
_____
20
–5
_____
10
–5
_____
3Fillintheblanks.
a5feet.Howmanytoes b6hands.Howmany
c4feet.Howmanytoes
inall?_______
inall?_______
fingersinall?_______
d9hands.Howmany
e45toes.Howmany
f35fingers.Howmany
fingersinall?_______
feet?_______
hands?______
© The Math Learning Center
Bridges in Mathematics nn 19
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Inchworm’sGarden
HereisLittleInchworm’sGarden.Usetheinchsideofyourrulertomeasurethe
pathbetweeneachpartofthegarden.Writeyouranswersonthechartbelow.
Tomato Plant
Potato Patch
Carrot Patch
Flower Bed
Pear Tree
Apple Tree
From
To
How Many Inches?
1
2
3
4
5
6
20 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Thinkingabout5’s
1Fillinthemissingnumbers.Thencolorinthecount-by-fivesnumbers,starting
with5(5,10,15,20,andsoon).
2
6
11
10
14
18
23
29
35
37
42
50
2Add:
5+5=_____
15+5=_____
21+5=_____
34+5=_____
15–5=_____
35–5=_____
50–5=_____
3Subtract:
20–5=_____
4Writethemissingnumbersontheline.
30 35 40
55
65
75
90
5What’snextinthisskipcountingpattern?1,6,11,16,_____,_____,_____,_____
© The Math Learning Center
Bridges in Mathematics nn 21
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Shells&Coins
1Rosahad14shells.Shegave3oftheshellstohersisterand4oftheshellsto
herbrother.HowmanyshellsdidRosahaveleft?Showyourwork.
Rosahad______shellsleft.
CHALLENGE
2Jaredhas5coinsinhispocket.Theyareworth18¢inall.Whatcoinsdoes
Jaredhave?Showyourwork.
Herearethe5coinsJaredhasinhispocket:_______________,_______________,
_______________,_______________,_______________
22 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
FactFamilies8’s
1Writeanequationtomatcheachcubetrain.
3+5=8
example_______________
a_______________
b_______________
c_______________
2Colorinthecubetraintomatchtheequation.
example5+3=8
a3+3+2=8
b2+6=8
c2+2+4=8
3Subtract:
8–0=_____
7–2=_____
7–5=_____
8–2=_____
8–4=_____
8–1=_____
8–3=_____
6–4=_____
8–5=_____
7–3=_____
8–7=_____
8–6=_____
8=7+_____
8=2+_____
4Fillinthemissingnumbers.
3+_____=8
© The Math Learning Center
_____+4=8
Bridges in Mathematics nn 23
PracticeBookUse anytime after Bridges, Unit 1, Session 23.
NAME
DATE
Inchworm’sPaths
LittleInchwormwantstogetfromthehousetotheduckpond.ShecanusePath
A,B,orC.
Path A
Path B
Path C
1Whichpathlooksshortest?(circleone)
PathAPathBPathC
2Usetheinchsideofyourruler.Measureeachpathtofindoutwhichoneisshortest.
aPathAis_________incheslong.
bPathBis_________incheslong.
cPathCis_________incheslong.
3Whichpathisshortest?_____________________________
4Whichpathislongest?_____________________________
CHALLENGE
5Usearedpencilormarker.Drawtheshortestpathfromthehousetotheduck
pond.Measureyournewpathwiththeinchsideofyourruler.
Abouthowlongisyournewpath?_______________inches
24 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
Ella’sPiggyBank
Ellatookallthecoinsoutofherpiggybank.Shemadeagraphaboutthem.
My Coin Graph
Pennies
1¢
Nickels
5¢
Dimes
10¢
1
2
3
4
5
6
7
1DoesEllahavemoredimesormorepennies?__________________________
2WhichcoindoesEllahavethemostof?__________________________
3Howmanyfewerdimesaretherethannickels?__________________________
4HowmuchmoneydoesEllahaveinherbank?__________________________
CHALLENGE
5Ellawantstobuyabinderfor$1.00.Howmuchmoremoneydoessheneed?
Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 25
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
Pets&Coins
1Markhas3dogs,5cats,and8fish.Howmanypetsdoeshehaveinall?Show
yourwork.
Markhas________petsinall.
CHALLENGE
2Hereare2clues.
• Carlyhas2morenickelsthandimesinherpocket.
• Shehas40cents.
HowmanynickelsdoesCarlyhave?HowmanydimesdoesCarlyhave?Show
yourwork.
Carlyhas_______nickels.Carlyhas______dimes.
26 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
FactFamilies9’s
1Writeanequationtomatcheachcubetrain.
6+3=9
example_______________
a_______________
b_______________
c_______________
2Colorinthecubetraintomatchtheequation.
example3+6=9
a3+3+3=9
b7+2=9
c4+5=9
3Subtract:
9–0=_____
8–3=_____
9–9=_____
9–2=_____
9–4=_____
9–1=_____
8–5=_____
9–8=_____
9–5=_____
9–3=_____
9–7=_____
9–6=_____
9=7+_____
9=8+_____
4Fillinthemissingnumbers.
4+_____=9
© The Math Learning Center
_____+6=9
Bridges in Mathematics nn 27
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
FishProblems
1Thereare12fishinthetank.5ofthefishareblue.Therestofthefisharered.
Howmanyofthefishinthetankarered?Showyourwork.
_______ofthefishinthetankarered.
CHALLENGE
2Jacobhas12fish.Someofthefishareyellow.Someofthefisharered.Thereare
noothercolors.Therearetwiceasmanyyellowfishasredfish.Howmanyyellow
fishdoesJacobhave?HowmanyredfishdoesJacobhave?Showyourwork.
Jacobhas_______yellowfish.Jacobhas______redfish.
28 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
CubesonaLine
1Writethenumbertoshowhowmanycubesthereareineachboxbelow.
ex
a
Tens
Ones
3
0
d
b
Tens
Ones
e
Tens
Ones
c
Tens
Ones
f
Tens
Ones
Tens
Ones
Tens
Ones
g
Tens
Ones
2Fillinthemissingnumbersonthenumberlinebelow.
0
5
10
25
40
50
70
3Add:
20
10
30
40
50
15
25
+10
____ +5
____ +8
____ +6
____ +10
____ +5
____ +5
____
© The Math Learning Center
Bridges in Mathematics nn 29
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
AntPaths
1Howmanycentimetersdoesthearmyanthavetogotogettoeachbug?Use
thecentimetersideofyourrulertofindout.
aOnPathAthearmyanthastotravel_________centimeters.
bOnPathBthearmyanthastotravel_________centimeters.
cOnPathCthearmyanthastotravel_________centimeters.
Path A
Path C
Path B
2
The army ants want to get the scorpion. They can use Path A, B, or C.
Path A
Path B
Path C
aUsethecentimetersideofyour
bIfyouwereanarmyant,whichpath
rulertomeasureeachpath.
wouldyouuse?Path_______Why?
PathAis_________centimeterslong.
PathBis_________centimeterslong.
PathCis_________centimeterslong.
30 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
FactFamilies10’s
1Writeanequationtomatcheachcubetrain.
5 + 5 = 10
example_______________
a_______________
b_______________
c_______________
2Colorinthecubetraintomatchtheequation.
example6+4=10
a8+2=10
b3+7=10
c1+2+3+4=10
3Subtract:
10–0=_____
10–3=_____
10–9=_____
10–2=_____
10–4=_____
10–1=_____
10–5=_____
10–8=_____
9–4=_____
10–6=_____
10–7=_____
10–10=_____
10=6+_____
10=1+_____
4Fillinthemissingnumbers.
5+_____=10
© The Math Learning Center
_____+7=10
Bridges in Mathematics nn 31
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
AntStoryProblems
Astoryproblemgivesyousomefactsandasksaquestion.Foreachproblem
•underlinethefacts.
•putaboxaroundthequestion.
•solvetheproblemandshowyourwork.
•writetheanswerontheline.
exampleTherewere10armyants.3wentouttogetsomefood.Howmany
antswereleft?
10 – 3 = 7
7
Therewere_____antsleft.
16antsareworkinghard.Somemorecometohelp.Nowthereare13ants.
Howmanyantscametohelp?
_____antscametohelp.
2Thereare7antsatthetopofthetunnel.Thereare4antsinthemiddle
chamber.Thereare5antsinthelowerchamber.Howmanyantsinall?
Thereare_____antsinall.
3Thereare6ants.Eachanthas3seeds.Howmanyseedsinall?
Thereare_____seedsinall.
32 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
TriangleFactFamilies
DrawalinetomatcheachUnifixcubetraintoitsfactfamilytriangle.Thenwrite
2additionand2subtractionsentencestomatch.
example
7
3+6=9
9-6=3
6+3=9
9-3=6
2
9
1
6
3
2
9
10
7
3
3
6
4
4
2
10
© The Math Learning Center
10
8
Bridges in Mathematics nn 33
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
T-Shirts&Turtles
1Lingotat-shirtfor7dollarsandateddybearfor4dollars.Hegavetheclerka
20-dollarbill.Howmuchmoneydidhegetback?Showyourwork.
Lingot_____dollarsback.
CHALLENGE
2Two8-leggedspiderslandedona4-leggedturtle.Thenthree2-leggedbirds
landedontheturtle.Howmanylegsinall(countingtheturtle)?Showyourwork.
Therewere_____legsinall.
34 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
AllaboutTens
1Circlethetwonumbersineachboxthataddupto10.
example
a
b
c
9
3
5
4
7
2
2
8
5
1
6
2
3
0
5
3
2Write2additionand2subtractionsentencestomatcheachten-frame.
example
a
6 + 4 = 10
4 + 6 = 10
10 – 4 = 6
10 – 6 = 4
b
c
3Subtract:
10
–7
_____
10
–5
_____
10
–6
_____
10
–3
_____
10
–4
_____
10
–9
_____
10
–2
_____
4Fillinthemissingnumbers.
3+_____=10
10=7+_____
© The Math Learning Center
_____+5=10
10=8+_____
4+6=_____
6+_____=10
9+_____=10
1+4+5=_____
Bridges in Mathematics nn 35
PracticeBookUse anytime after Bridges, Unit 2, Session 10.
NAME
DATE
Dollars&Quarters
1Janahas7dollars.Howmanymoredollarsdoessheneedtohave14dollars
altogether?Showyourwork.
Jananeeds______moredollars.
CHALLENGE
2Timmyhas7dollars.Howmanymorequartersdoesheneedtohave12dollars
altogether?Showyourwork.
Timmyneeds_______morequarters.
36 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Factsto8
1Add:
4
+4
_____
4
+3
_____
3
+5
_____
1
+2
_____
8
+0
_____
3
+3
_____
5
+2
_____
3
+2
_____
5
+3
_____
7
+1
_____
6
+2
_____
2
+5
_____
2
+6
_____
2
+2
_____
4+3=_____
5+3=_____
4+2+2=_____ 1+2+3=_____
2Subtract:
7
–5
_____
8
–0
_____
8
–4
_____
8
–1
_____
7
–3
_____
8
–5
_____
6
–4
_____
8
–2
_____
7
–2
_____
8
–8
_____
8
–7
_____
8
–3
_____
8
–6
_____
7
–4
_____
6–5=_____
6–3=_____
5–2=_____
7–6=_____
3GetUnifixcubes.Maketrainsof1,2,3,and4cubes.Putthetrainstogether
tomakethenumbersinthehexagonsbelow.Colorintheboxestoshowwhich
trainsyouputtogether.Youcanusemorethan2trainstomakeanumber.
1
example
a
2
b
3
c
4
d
e
5
6
7
8
9
10
1 2
3 4
1 2
3 4
1 2
3 4
1 2
3 4
1 2
3 4
1 2
3 4
© The Math Learning Center
Bridges in Mathematics nn 37
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Flowers&Oranges
1Jenhadsomeflowers.Herfriendgaveher9moreflowers.Nowshehas14flowers.
HowmanyflowersdidJenhavetostartwith?Showyourwork.
Jenhad______flowerstostartwith.
CHALLENGE
2Jonhad4oranges.Hecuteachorangeinto8slices.Howmanyorangeslices
didhehaveinall?Showyourwork.
Jonhad________orangeslicesinall.
38 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
TellingTimeonTwoKindsofClocks
1Readeachoftheseclockfacesandwritethetimeonthedigitalclock.
a
b
c
d
2Readeachofthesedigitalclocksandmarkthetimeontheclockface.
a
© The Math Learning Center
b
c
d
Bridges in Mathematics nn 39
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
LadybugStoryProblems
Astoryproblemgivesyousomefactsandasksaquestion.Foreachproblem
• underlinethefacts.
• putaboxaroundthequestion.
• solvetheproblemandshowyourwork.
• writetheanswerontheline.
exampleTherewere7ladybugsontheleaf.6morelandedontheleaf.How
manyladybugsinall?
7 + 6 = 13
13
Therewere_____ladybugsinall.
110ladybugsweresittingonaleaf.Abirdcameandchased4ofthemaway.
Howmanyladybugswereleft?
_____ladybugswereleft.
2Thereare4ladybugsontheleaf.Howmanylegsinall?(Ladybugshave6legs.)
Thereare_____legsinall.
3Therewere5ladybugsonaleaf.Somemoreladybugscame.Thentherewere
12ladybugsontheleaf.Howmanyladybugscame?
_____ladybugscame.
40 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Factsto9
1Add:
5
+4
_____
4
+4
_____
3
+6
_____
2
+2
_____
9
+0
_____
4
+3
_____
3
+5
_____
7
+2
_____
5
+2
_____
8
+1
_____
6
+2
_____
4
+5
_____
2
+6
_____
1
+7
_____
4+3=_____
5+2+2=_____
6+2=_____ 0+6+3=_____
2Subtract:
8
–5
_____
9
–0
_____
8
–4
_____
9
–1
_____
7
–3
_____
9
–5
_____
8
–3
_____
9
–2
_____
7
–2
_____
9
–8
_____
9
–9
_____
9
–3
_____
8
–6
_____
7
–5
_____
9–4=_____
9–6=_____
9–7=_____
8–7=_____
3GetUnifixcubes.Maketrainsof2,3,4,and8cubes.Putthetrainstogether
tomakethenumbersinthehexagonsbelow.Colorintheboxestoshowwhich
trainsyouputtogether.Youcanuseoneormoretrainstomakeanumber.
example
2
3
a
b
4
8
c
d
e
5
6
7
8
9
2 3
4 8
2 3
4 8
2 3
4 8
2 3
4 8
2 3
4 8
© The Math Learning Center
10
2 3
4 8
Bridges in Mathematics nn 41
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Cookies&Apples
1Therewere15cookiesontheplate.Thedoggotsomeofthem.Nowthereare
only 7cookiesontheplate.Howmanydidthedogget?Showyourwork.
Thedoggot______cookies.
CHALLENGE
2Annhad4apples.Shecuteachappleinto5slices.Eachslicehad3seedsinit.
Howmanyseedsinall?Showyourwork.
Therewere______seedsinall.
42 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
NumberPatterns
1aFillinthemissingnumbersonthischart.
1
2
11
12
21
32
41
13
62
71
72
81
82
5
6
15
16
7
8
9
10
18
19
20
27
28
29
30
38
23
24
25
33
34
35
36
37
44
45
46
47
56
57
58
67
68
42
51
91
4
53
54
63
64
65
74
75
76
85
86
87
96
97
83
93
94
40
49
78
98
59
60
70
79
89
90
99
100
bColorallthecounting-by-2’snumbersred.
cColorallthecounting-by-5’snumbersyellow.
dColorallthecounting-by-10’snumbersblue.
2Thenumbersintheboxaremixedup!Puttheminorderfromleasttogreatest.
62
51
17
78
40
14
_______,_______,_______,_______,_______,_______
least
© The Math Learning Center
greatest
Bridges in Mathematics nn 43
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
MeasuringLadybugPaths
1Measuretheladybugs’pathsbelow.Usethecentimetersideofyourruler.Write
thelengthofeachpathonthecorrectline.
Bug A
Bug C
Bug B
aBugAwalked______cm
bBugBwalked______cm
cBugCwalked______cm
dBugDwalked______cm
Bug D
2Whichladybughasthelongestpath?(circleone)
BugABugBBugCBugD
3HowmuchlongerisBugA’spaththanBugB’spath?______________________
4HowmuchshorterisBugD’spaththanBugA’spath?__________________
5Howfardidthe4ladybugswalkinall?Writeanumbersentencetoshow.
6Drawapathfromtheladybugtotheflower.Measureitwiththecentimeter
sideofyourruler.
Mypathis_______centimeterslong.
44 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Factsto10
1Add:
5
+5
______
4
+5
______
3
+7
______
2
+3
______
10
+0
______
5
+3
______
7
+2
______
8
+2
______
5
+2
______
9
+1
______
6
+3
______
4
+6
______
2
+6
______
4
+3
______
3+4+2=_____
2+3+5=_____
1+2+3+4=_____
2Subtract:
9
–5
______
10
–0
______
8
–4
______
10
–1
______
9
–3
______
10
–5
______
9
–4
______
10
–2
______
7
–3
______
10
–8
______
10
–7
______
10
–3
______
10
–10
______
9
–7
______
10–4=_____
10–6=_____
10–9=_____
9–6=_____
3GetUnifixcubes.Maketwotrainsof2andtwotrainsof3.Putthetrainstogethertomakethenumbersinthehexagonsbelow.Colorintheboxestoshow
whichtrainsyouputtogether.Youcanusemorethan2trainstomakeanumber.
Thereisonenumberyoucannotmake.Crossitoutwhenyoufindit.
2
2
example
a
b
3
3
c
d
e
5
6
7
8
9
2 2
3 3
2 2
3 3
2 2
3 3
2 2
3 3
2 2
3 3
© The Math Learning Center
10
2 2
3 3
Bridges in Mathematics nn 45
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Snacks
1Thereweresomegranolabarsonthetable.Thekidsate6ofthem.Nowthere
are9granolabarsleftonthetable.Howmanygranolabarswereonthetableto
startwith?Showyourwork.
Therewere_____granolabarsonthetabletostartwith.
CHALLENGE
2Linbought3fruitstripsfor45¢each.Hegavetheclerk$2.00.Howmuch
changedidhegetback?Showyourwork.
Lingot_________backinchange.
46 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
Addition&SubtractionTables
1Fillinthemissingnumbersonthe
2Fillinthemissingnumbersonthe
additiontables.Someofthenumbers
havealreadybeenfilledinforyou.
subtractiontables.Someofthenumbershavealreadybeenfilledinforyou.
a
a
+
2
1
3
3
4
5
6
7
0
1
1
2
2
3
5
3
11
6
1
2
4
4
–
0
3
10
8
4
2
2
6
5
3
3
0
5
4
6
5
b
b
+
3
3
6
4
5
6
7
6
7
8
9
10 11
1
4
2
9
5
13
3
11
8
© The Math Learning Center
14
5
6
–
0
1
7
8
4
6
7
8
2
3
6
4
5
Bridges in Mathematics nn 47
PracticeBookUse anytime after Bridges, Unit 3, Session 12.
NAME
DATE
ComparingNumbersto100
Hereare6pairsofUnifixcubecollections.Counttofindoutwhichcollectionhas
moreandwhichcollectionhasfewercubes.Writenumbersandsignstoshow.
<fewerthan=thesameas>morethan
example
1
60
>
45
2
3
4
5
48 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
MissingNumbers
1Fillinthemissingnumberstocompletetheadditionfacts.
5+5=_____
4+4=_____
2+2=_____
7+_____=14
8+_____=16
9+_____=18
_____+6=12
_____+1=2
_____+3=6
10+2=_____
6+10=_____
10+4=_____
3+_____=13
10+_____=18
8+_____=16
2Fillinthemissingnumberstocompletethepattern.
aSkip-countforwardby5’s.
bSkip-countforwardby5’s.
5,10,15,_____,25,_____,_____
40,_____,50,_____,_____,65
cSkip-countforwardby5’s.
dSkip-countforwardby5’s.
13,18,23,_____,33,_____,_____
19,24,_____,34,39,_____,49
eSkip-countbackwardby5’s.
fSkip-countbackwardby5’s.
30,25,_____,15,_____,_____
27,22,_____,12,_____,_____
CHALLENGE
3Skip-countby5’s.Circlethewordtoshowwhetheryouwentforwardorbackwardeachtime.
a143,138,133,_____,123,_____,113,_____,_____,98
forwardbackward
b332,337,342,_____,352,357,_____,_____,372,_____
forwardbackward
c488,493,498,_____,_____,513,_____,_____,_____,533
forwardbackward
d267,262,257,_____,_____,_____,237,_____,227,_____
forwardbackward
© The Math Learning Center
Bridges in Mathematics nn 49
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
Beads&Patterns
1aTrinahas17beads.9ofthebeadsareblue,andtherestarered.Howmany
redbeadsdoesTrinahave?Showyourwork.
Trinahas_______redbeads.
bTrinawantstomakeabraceletwithherbeads.Howcanshemakeacolorpatternwithher17blueandredbeads?Drawapicturetoshow.
CHALLENGE
2Lookforapattern.Fillinthemissingnumbersthatfityourpattern.
a1,7,13,19,______,______,______
b2,7,12,17,______,______,______,37,______,______,52
c25,20,15,______,______,______
d24,20,16,12,______,______,______
e1,2,4,7,11,______,______,29,______,46,_______
f1,2,4,8,_____,_____,_____,128,_____,_____
50 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
Doubles&Neighbors
1Colortheten-stripstomatcheachadditionproblem.Writetheanswer.
ex
a
7
+7
_____
7
+8
_____
14
d
b
e
8
+8
_____
c
6
+6
_____
f
9
+8
_____
6
+7
_____
g
9
+9
_____
10
+9
_____
2Subtract.
10
–5
_____
11
–5
_____
8
–4
_____
9
–4
_____
6
–3
_____
7
–3
_____
4
–2
_____
15
–7
_____
12
–6
_____
13
–6
_____
16
–8
_____
17
–8
_____
18
–9
_____
14
–7
_____
© The Math Learning Center
Bridges in Mathematics nn 51
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
TheGymTeacher&JasonattheSchoolStore
1aMrs.Brownisthegymteacher.Shehas15soccerballsand8footballs.How
manymoresoccerballsthanfootballsdoesMrs.Brownhave?Showyourwork.
Mrs.Brownhas______moresoccerballsthanfootballs.
bHowmanysoccerballsandfootballsdoesMrs.Brownhaveinall?Showyourwork.
Mrs.Brownhas______soccerballsandfootballsinall.
CHALLENGE
2Jasonhad2quartersand1dime.Hewenttotheschoolstoretospendallhis
money.What3thingscouldhebuy?Findatleast2differentanswers.Showyourwork.
School Store Price List
Markers
$0.25 each
Tablets
$0.30 each
Erasers
$0.10 each
Pencils
$0.20 each
Folders
$0.15 each
52 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
FastNines&FastTens
1Colortheten-stripstomatcheachadditionproblem.Writetheanswer.
ex
a
9
+7
_____
9
+3
_____
16
d
b
e
9
+5
_____
c
6
+9
_____
f
4
+9
_____
10
+8
_____
g
9
+8
_____
10
+7
_____
2Subtract:
16
–10
_____
16
–9
_____
12
–10
_____
12
–9
_____
15
–10
_____
15
18
–9
_____ –10
_____
18
–9
_____
14
–10
_____
14
–9
_____
13
–10
_____
13
–9
_____
17
–10
_____
© The Math Learning Center
17
–9
_____
Bridges in Mathematics nn 53
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
BaseballCards &TeriattheSchoolStore
1Jameshad17baseballcards.Hegave9ofthemtoAndre.Whohasmorebaseballcardsnow,JamesorAndre?Howmanymore?Showyourwork.
_________________ has_____morebaseballcard(s)than_______________.
CHALLENGE
2Teriwenttotheschoolstore.Shegavetheclerkaone-dollarbill.Shegot30¢back
inchange.Whatmightshehavebought?Find3possibleanswers.Showyourwork.
School Store Price List
Markers
$0.25 each
Tablets
$0.30 each
Erasers
$0.10 each
Pencils
$0.20 each
Folders
$0.15 each
54 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
ScoutThemOutAdd&Subtract
1aCircleallthe+2factsinblue.Thentakeapencilandgobackanddothem.
bCircleallthe+10factsinred.Thentakeapencilandgobackanddothem.
2
+6
_____
10
+1
_____
2
+8
_____
5
+2
_____
7
+2
_____
9
+10
_____
2
+4
_____
10
+4
_____
10
+7
_____
2
+8
_____
2
+2
_____
10
+3
_____
6
+10
_____
11
+2
_____
2aCircleallthe–2factsinblue.Thentakeapencilandgobackanddothem.
bCircleallthe–10factsinred.Thentakeapencilandgobackanddothem.
10
–2
_____
14
–10
_____
6
–2
_____
9
–2
_____
12
–10
_____
19
–10
_____
7
–2
_____
13
–2
_____
17
–10
_____
4
–2
_____
16
–10
_____
14
–2
_____
18
–10
_____
11
–2
_____
15
–2
_____
20
–10
_____
5
–2
_____
8
–2
_____
11
–10
_____
20
–10
_____
3
–2
_____
3Trueorfalse?Circleone.
a10+5=15TF
b7+7=13TF
c5+6=11TF
d13–3=8TF
e14–7=7TF
f19–10=9TF
© The Math Learning Center
Bridges in Mathematics nn 55
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
ExtraFacts
Sometimesstoryproblemsgiveyoumorefactsthanyouneedtosolvetheproblem.
Ineachproblembelow,crossoutthefactyoudon’tneed.Thensolvetheproblem.
Showyourwork.
1Neenabought7redapples,8greenapples,and3yellowapples.Neenais12
yearsold.HowmanyapplesdidNeenabuy?
Neenabought_________apples.
2Pedrohad15dollars.Hespent9dollarsonabook.Hisfriendhad12dollars.
HowmuchmoneydidPedrohaveleft?
Pedrohad______dollarsleft.
3Thegymteacherhad16soccerballs.Shehad14footballs.Shegave8ofthe
soccerballstotheplaygroundhelper.Howmanysoccerballsdidshehaveleft?
Thegymteacherhad______soccerballsleft.
CHALLENGE
4Theladybugate28aphidsinthemorning.Thenshetookanaponaleaffor3
hours.Sheate34aphidsintheafternoon.Howmanyaphidsdidsheeatinall?
Theladybugate______aphidsinall.
56 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
MakeTenFacts
1MakeTenfactsarepairsofnumbersthataddupto10,like5+5,4+6,and8+2.
aCirclealltheMakeTenfactsinred.Thentakeapencilandgobackanddothem.
bCircleallthefactsthatarenotMakeTenfactsinblue.Thentakeapenciland
gobackanddothem.
4
+6
_____
6
+1
_____
3
+8
_____
5
+5
_____
4
+3
_____
9
+1
_____
4
+4
_____
5
+4
_____
3
+7
_____
2
+8
_____
7
+2
_____
6
+3
_____
5
+3
_____
10
+0
_____
6
+1
_____
6
+4
_____
5
+5
_____
3
+7
_____
1
+9
_____
2
+2
_____
3
+6
_____
2Addthesestringsofnumbers.UseyourMakeTenfactstohelp.
20
16
examplea4+5+2+5=_______
exampleb8+3+2+7=_______
10
10
10
a2+9+1+6=_______
b3+4+8+2=_______
c3+7+4+6=_______
d3+3+5+5=_______
e6+5+5+9+1=_______
f7+2+3+7+1=_______
© The Math Learning Center
Bridges in Mathematics nn 57
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
A.M.orP.M.?
A.M.andP.M.areabbreviations.
PeopleoftensaythattimesintheA.M.aremorningtimes,butA.M.really
indicatesanytimebetweenmidnightandnoon.
PeopleoftensaythattimesintheP.M.aretimesintheafternoonornight.P.M.
reallyindicatesanytimebetweennoonandmidnight.
3:00a.m.issoearlyinthemorningit’snotevenlightyet.Mostpeopleareasleep.
3:00p.m.isintheafternoon,justaboutthetimeschoolgetsout.Mostpeopleare
awakeat3:00p.m.
1Circlethetimethatpeoplewouldprobablydoeachofthesethingsonaschoolday.
Activity
A.M.
P.M.
Activity
A.M.
P.M.
eTurnona
aEatdinner.
6:00a.m. 6:00p.m.
nightlight.
8:30a.m. 8:30p.m.
bEatbreakfast.
7:00a.m. 7:00p.m.
fRideabike.
3:30a.m. 3:30p.m.
cWatchT.V.
5:00a.m. 5:00p.m.
2Drawapictureofsomethingyoudo
at10:00a.m.onaschoolday.
dHomework
4:00a.m. 4:00p.m.
58 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
MoreScoutThemOuts
1aCirclealltheDoublefacts(e.g.,10+10)inblue.Thentakeapencilandgoback
anddothem.
bCirclealltheNeighborfacts(e.g.,4+5)inred.Thentakeapencilandgoback
anddothem.
2
+2
_____
2
+3
_____
5
+5
_____
5
+6
_____
4
+3
_____
4
+4
_____
6
+6
_____
6
+5
_____
6
+7
_____
7
+7
_____
8
+7
_____
9
+9
_____
9
+10
_____
11
+11
_____
3
+3
_____
3
+4
_____
8
+8
_____
12
+12
_____
12
+13
_____
13
+13
_____
13
+14
_____
2aCirclealltheHalffacts(e.g.,8–4)inblue.Thentakeapencilandgoback
anddothem.
bCircleallthe–10factsinred.Thentakeapencilandgobackanddothem.
10
–5
_____
15
–10
_____
6
–3
_____
19
–10
_____
13
–10
_____
14
–7
_____
4
–2
_____
16
–8
_____
20
–10
_____
12
–6
_____
40
–20
_____
60
–30
_____
100
–50
_____
80
–40
_____
3Trueorfalse?Circleone.
a6+7=13TF
d14–7=8TF
© The Math Learning Center
b9+8=17TF
e16–8=10TF
c5+5=9TF
f12–6=6TF
Bridges in Mathematics nn 59
PracticeBookUse anytime after Bridges, Unit 3, Session 24.
NAME
DATE
Numbers&Words
1Tracethenumeralsandthewords.
1one2two3three4four
5five6six7seven8eight
9nine10ten20twenty
30thirty40 forty50fifty
60sixty70 seventy80eighty
90ninety100onehundred
2Labeleachsetofbase10pieceswiththecorrectnumbername.
ninety-four
example________________________
a_________________________________
b________________________________ c________________________________
60 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
MysteryShapes
Thereare6mysteryshapesontheright.Readeachriddlebelowandwritethe
nameofthemysteryshape.
1Ihave6faces.2ofmyfacesaresquare.4ofmyfaces
arerectanglesthatarenotsquares.
Iamthe_________________________________________.
cube
2Ihavenofacesatall.Iamroundallthewayaround.
Iamthe_________________________________________.
pyramid
3Ihave5faces,butyoucanonlysee2ofthem.4ofmy
facesaretriangles.Theymeetatonepointcalledavertex.
Iamthe_________________________________________.
rectangular prism
4Twoofmyfacesarecircles.Ifyousetmeononeof
thosefaces,Iwillnotroll.
Iamthe_________________________________________.
sphere
5Ihave5faces.3ofmyfacesarerectangles.2ofmy
facesaretriangles.
Iamthe_________________________________________.
cylinder
6Ihave6faces.Allmyedgesareexactlythesamelength.
Iamthe_________________________________________.
© The Math Learning Center
triangular prism
Bridges in Mathematics nn 61
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
MoreExtraFactsPractice
Sometimesstoryproblemsgiveyoumorefactsthanyouneedtosolvetheproblem.
Ineachproblembelow,crossoutthefactyoudon’tneed.Thensolvetheproblem.
Showyourwork.
1Nickhas3cats.Hehad12fish.Hegave4ofthefishtohisfriend.Howmany
fishdoeshehaveleft?
Nickhas_______fishleft.
2Lin’sbigsisteris15.Shelistenedto8songsonherCDplayerinthemorning.
Shelistenedto9moresongsthatnight.Howmanysongsdidshelistentoinall?
Lin’sbigsisterlistenedto______songsinall.
3Ambermade9cupcakes.Thenshemade12morecupcakes.Ittook2cupsof
sugartomakethefrosting.Howmanycupcakesdidshemakeinall?
Ambermade______cupcakesinall.
CHALLENGE
4TheGreenDragonhad250goldpieces.Heis18feettall.Heismadbecause
thetrollstook60ofhisgoldpieces.Howmanygoldpiecesdoeshehaveleft?
TheGreenDragonhas______goldpiecesleft.
62 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
MoreMakeTenFacts
1MakeTenfactsarepairsofnumbersthataddupto10,like9+1,4+6,and3+7.
aCirclealltheMakeTenfactsinred.Thentakeapencilandgobackanddothem.
bCircleallthefactsthatarenotMakeTenfactsinblue.Thentakeapenciland
gobackanddothem.
7
+3
_____
6
+6
_____
2
+8
_____
7
+7
_____
5
+5
_____
10
+0
_____
5
+4
_____
6
+7
_____
3
+7
_____
8
+8
_____
7
+8
_____
6
+4
_____
9
+9
_____
0
+10
_____
10
+10
_____
1
+9
_____
4
+6
_____
3
+2
_____
4
+3
_____
2
+8
_____
10
+9
_____
2Addthesestringsofnumbers.UseyourMakeTenfactstohelp.
19
exa3+6+6+4=_______
10
24
exb8+5+2+5+4=_______
10
10
a3+7+9+1=_______
b2+6+4+2=_______
c9+5+5+3+7=_______
d8+2+5+2+5=_______
3Subtract:
10–6=_______
10–8=_______
10–5=_______ 10–3=_______
10–9=_______
10–1=_______
10–4=_______
© The Math Learning Center
10–2=_______
Bridges in Mathematics nn 63
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
UsingMakeTenFactstoHelpSubtract
DJHoppersaysyoucanusewhatyouknowaboutmakingtenstohelpsubtract.
Ifthefactis15–9,youcanthinkaboutmakingaten(9+1=10)andthenadding5moretogetto15.DJlikestoshowhisworkonthenumberline,likethis.
6
15–9=______
+1
9
+5
10
15
1Makehopsonthenumberlineandlabelthemtosolvesubtractionproblems.
6
example14–8=______
+2
8
+4
10
14
a13–7=______
10
7
13
b15–7=______
10
7
15
c12–8=______
8
64 nn Bridges in Mathematics
10
12
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
Symmetry
1aCircletheshapesthataresymmetrical.
bCrossouttheshapesthatarenotsymmetical.
Square
Circle
Scalene Triangle
Rectangle
Pentagon
Ellipse
Right Triangle
Trapezoid
2Howmanylinesofsymmetrycanyoufindineachshape?Useyourrulerto
drawthelinesofsymmetry,andwritethenumber.
example
a
Anequilateraltriangle
Anisoscelestrapezoid
3
has______linesofsymmetry.
has______linesofsymmetry.
b
c
Arhombus
Ahexagon
has______linesofsymmetry.
has______linesofsymmetry.
© The Math Learning Center
Bridges in Mathematics nn 65
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
TheShapesShop
1Countthemoneytofindouthowmucheachshapeisworth.Writethepriceon
theshape.
a
b
______¢
c
______¢
______¢
2MariaboughtsomeshapesattheShapesShop.Sheusedallhershapestomake
thispicture.Howmuchmoneydidshespend?Showyourwork.
3Usesquares,circles,andtrianglestomakeapictureworth48¢.Labelyour
worktoproveit.
66 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
ThinkingaboutPlaceValue
1Tracethenumeralsandthewords.
1one2two3three4four
5five6six7seven8eight
9nine10ten11eleven
12twelve13thirteen
14fourteen15 fifteen
16sixteen17 seventeen
18eighteen19nineteen
20twenty100onehundred
2Labeleachsetofbase10pieceswiththecorrectnumbername.
one hundred fifteen
example________________________
a________________________________
b________________________________ c________________________________
© The Math Learning Center
Bridges in Mathematics nn 67
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
TwoDifferentWaystoWriteMoneyAmounts
Ifyouhaveanamountofmoneylessthanadollar,youcanwritetheamount
withacentssignoradollarsign.
1Countthemoneyineachbox,andwriteitintwodifferentways.
ex
a
b
c
$0.23
23¢
_________or_________
_________or_________
_________or_________
_________or_________
2Writethenameofeachcoin.Showhowtowriteitwithacentssignoradollar
sign.Thendrawadifferentwaytomakethesameamountofmoneywithmore
thanonecoin.
nickel
ex_______________
a________________ b________________
Coin name
Written two
ways
$0.05
5¢
________or________
________or________ ________or________
1¢
Different way
to make it.
68 nn Bridges in Mathematics
1¢
1¢
1¢
1¢
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
SubtractionStrategies
1aCirclealltheSubtract2’sinblue.Thentakeyourpencilandgobackanddothem.
(Example10–2or16–2)
bCirclealltheSubtractHalvesinred.Thentakeyourpencilandgobackanddo
them.(Example12–6or14–7)
cCirclealltheTakeAwayTensingreen.Thentakeyourpencilandgobackand
dothem.(Example14–10or19–10)
dCirclealltheRunawayOnesinpurple.Thentakeyourpencilandgobackand
dothem.(Example13–3or17–7)
eAndnow—seeifyoucanusethefactsyou’vecircledandsolvedtohelpyou
figureouttherest!
15
–2
_____
14
–6
_____
13
–3
_____
10
–2
_____
14
–7
_____
14
–8
_____
19
–9
_____
15
–5
_____
17
–8
_____
17
–10
_____
11
–2
_____
16
–8
_____
18
–8
_____
19
–2
_____
18
–9
_____
10
–5
_____
18
–4
_____
19
–10
_____
13
–2
_____
14
–4
_____
11
–5
_____
16
–9
_____
14
–10
_____
12
–10
_____
16
–10
_____
14
–8
_____
12
–9
_____
20
–10
_____
120
83
140
160
29
180
–60
_____ –10
_____ –70
_____ –80
_____ –2
_____ –90
_____
48
–8
_____
© The Math Learning Center
Bridges in Mathematics nn 69
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
Sara’sPockets
1Sarahas4coinsinherrightpocket.Together,theyareworth30¢.What4
coinsdoesSarahaveinherrightpocket?Showyourwork.
The4coinsSarahasinherrightpocketare_________________________________
2Sarahas7coinsinherleftpocket.Together,theyareworth24¢.What7coins
doesSarahaveinherleftpocket?Showyourwork.
The7coinsSarahasinherleftpocketare___________________________________
70 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
Halves
1Circlethecorrectanswer.
aIfyoucutthissquareinhalf,whattwoshapeswillyouget?
bIfyoucutthisrectangleinhalf,whattwoshapeswillyouget?
cIfyoucutthishexagoninhalf,whattwoshapeswillyouget?
2Subtract:
10
–5
_____
16
–8
_____
20
–10
_____
12
–6
_____
14
–7
_____
18
–9
_____
6
–3
_____
40
–20
_____
60
–30
_____
24
–12
_____
30
–15
_____
80
–40
_____
100
–50
_____
22
–11
_____
400
–200
_____
600
–300
_____
200
–100
_____
120
–60
_____
180
–90
_____
160
–80
_____
140
–70
_____
© The Math Learning Center
Bridges in Mathematics nn 71
PracticeBookUse anytime after Bridges, Unit 4, Session 12.
NAME
DATE
ComparingNumbersto300
1Counttofindoutwhichsetofbasetenpiecesineachpairisgreaterandwhich
isless.Writenumbersandsignstoshow.
<lessthan=thesameas>greaterthan
example
124
213
____________
a
____________
b
____________
2Readthenumbersinthebox.Thenwritetheminorderonthelinesfrom
leasttogreatest.
261
107
67
113
204
_______________________________________________________
least
72 nn Bridges in Mathematics
greatest
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
FactFamilyTriangles
MatcheachUnifixtraintoitsfactfamilytriangle.Thenwrite2additionand2
subtractionsentencestomatch.Writethemunderthetrain.
example
12
4 + 9 = 13
9 + 4 = 13
13 – 4 = 9
13 – 9 = 4
5
7
1
11
6
5
2
13
4
9
3
14
6
8
4
15
9
© The Math Learning Center
6
Bridges in Mathematics nn 73
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Bowls&Vans
1Joshgot12goldfish.Hewantstoput3goldfishineachlittlefishbowl.How
manylittlefishbowlswillheneed?Showyourwork.
Joshwillneed_________littlefishbowls.
CHALLENGE
236kidsaregoingtothepark.Eachvancanhold6kids.Howmanyvanswill
theyneedtotakeallthekidstothepark?Showyourwork.
Theywillneed_________vanstotakeallthekidstothepark.
74 nn Bridges in Mathematics
SOCCER CITY
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Puzzlesabout Ten&More
1Fillinthemissingnumberstosolvetheseequations.Usethepicturestohelp.
a______=5+5
b10=2+4+______
c10=______+2
d7+______=10
e10–______=4
f10–______=7
g4+5=______+7
h10–5=2+______
2Fillinthemissingnumberstosolvetheseequations.
5+4+1=______
6+4+______=13
5+______+9=19
16–_____=6
14–______=7
12–6=______
10–3=2+______
12–6=2+______
16–8=______+1
CHALLENGE
3Fillinthemissingnumberstosolvetheseequations.
90–30=20+______ 143–11=127+______
© The Math Learning Center
160–18=______+15
Bridges in Mathematics nn 75
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
AnotherTriptotheShapesShop
10¢
10¢
Triangles
25¢
25¢
Trapezoids
5¢
15¢
20¢
5¢
15¢
20¢
Circles
Squares
Rectangles
1Howmuchdoesthisshapepicturecost?Circlethecoinsyoucouldusetopay
forit.
25¢
20¢
5¢
5¢
2Drawavehicle(car,boat,truck,plane,scooter,bike,skateboard)thatcosts
75¢.Labelyourpicturewiththeprices.Addthenumberstocheckyourwork.
76 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
MakeTenstoSubtract
DJHoppersaysyoucanusewhatyouknowaboutmakingtenstohelpsubtract.
Ifthefactis15–8,youcanthinkaboutmakingaten(8+2=10)andthenadding5moretogetto15.DJlikestoshowhisworkonthenumberline,likethis.
7
15–8=______
+5
+2
8
10
15
1Makehopsonthenumberlineandlabelthemtosolvesubtractionproblems.
a14–7=______
7
10
14
b16–9=______
9
10
16
c13–6=______
6
10
13
d14–8=______
8
© The Math Learning Center
10
14
Bridges in Mathematics nn 77
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Books&GranolaBars
1Jose,Matt,andDaniwenttothelibrary.Theyeachcheckedout5books.How
manybooksisthatinall?Showyourwork.
Jose,Matt,andDanicheckedout________booksinall.
CHALLENGE
2Showyourworkoneachproblem.4granolabarscost$2.00.
aHowmuchdoes1granolabarcost?________________________
bHowmuchdo2granolabarscost?________________________
cHowmuchdo5granolabarscost?________________________
78 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
MoreFactFamilyTriangles
MatcheachUnifixtraintoitsfactfamilytriangle.Thenwrite2additionand2
subtractionsentencestomatch.Writethemunderthetrain.
example
14
4 + 7 = 11
7 + 4 = 11
11 – 4 = 7
11 – 7 = 4
9
5
1
13
6
7
2
11
7
4
3
12
9
3
4
13
8
© The Math Learning Center
5
Bridges in Mathematics nn 79
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Ants&theNumberBox
1Thereare4linesofants.Thereare5antsineveryline.Thequeenwants30
antsforherparade.
aHowmanyantsarelineduprightnow?Showyourwork.
bHowmanymoreantsneedtolineup?Showyourwork.
CHALLENGE
2Usethenumbersinthebox.
18
11
23
6
3
16
12
5
10
4
17
aFind2numberswhosesumis21.______________
bFind2numberswhosesumis29.______________
cFind2numberswhosedifferenceis10.______________
dFind2numberswhosedifferenceis14.______________
eFind4numbersthathavethesmallesttotal.____________________________
80 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Adding&SubtractingTens
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99 100
1Add.UsetheHundredsGridtohelp.
50
+10
_____
38
+10
_____
45
+10
_____
66
+10
_____
79
+10
_____
53
+10
_____
26
+10
_____
19
+10
_____
21
+10
_____
81
+10
_____
37
+10
_____
40
+10
_____
72
+10
_____
27
+10
_____
2Subtract.UsetheHundredsGridtohelp.
75
–10
_____
55
–10
_____
42
–10
_____
99
–10
_____
87
–10
_____
18
–10
_____
21
–10
_____
47
–10
_____
14
–10
_____
51
–10
_____
39
–10
_____
28
–10
_____
77
–10
_____
94
–10
_____
© The Math Learning Center
Bridges in Mathematics nn 81
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Apples&SnowPeople
1Thereare7apples.Everyapplehas5seeds.Howmanyseedsdotheyhavein
all?Showyourwork.
The7appleshave________seedsinall.
CHALLENGE
2Amyandherfriendsaremakingsnowpeople.Theyuse2stonesfortheeyes,
5stonesforthemouth,and5stonesforbuttons.Howmanystoneswillittaketo
make7snowpeople?Showyourwork.
Itwilltake________stonestomake7snowpeople
82 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
Half&Half
1Circletheshapethatshowstwohalves.
a
b
c
d
2Circletheshapesthatshowtwohalves.Thencolorinhalfofeachofthem.
a
b
c
3Color 12 oftheobjectsineachbox.
a
b
c
d
© The Math Learning Center
Bridges in Mathematics nn 83
PracticeBookUse anytime after Bridges, Unit 4, Session 25.
NAME
DATE
SharingStories
1Robhad16shells.Hegavehalfofthemtohisbrother.Howmanyshellsdoes
Robhavenow?Showyourwork.
Robhas________shellsnow.
CHALLENGE
2Jesshad28marbles.ShegavehalfofthemtoEli.ThenJessgavehalfofthe
marblesshehadlefttohersister.HowmanymarblesdoesJesshavenow?Show
yourwork.
Jesshas________marblesnow.
84 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
MissingNumbers
1Onenumberfromeachfamilyislost!Writethemissingnumberinthetriangle.
Usethepicturestohelp.Thenwrite2additionand2subtractionsentencestomatch.
example
12
5
7
4
8
5 + 7 = 12
7 + 5 = 12
12 – 5 = 7
12 – 7 = 5
a
b
15
9
c
15
7
2Fillinthemissingnumberstosolvetheseequations.
6+7+3=_______
8+1+_______=18
5+_______+2=13
13–_______=8
12–_______=7
12–4=_______
CHALLENGE
3Fillinthemissingnumberstosolvetheseequations.
40+18+23=_______ 60+47+_______=126_______+67+26=131
© The Math Learning Center
Bridges in Mathematics nn 85
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
PetShop Equations
1Drawalinetomatcheachproblemwithitsequation.Thenfindtheanswers.
aThepetshopownerhad14hamsters.Shesold
5ofthemonMondayand3ofthemonTuesday.
Howmanyhamstersdoesshehaveleft?
9–2+8=______
bTherewere12puppiesinthepen.Thepetshop
ownersoldsomeofthem.Nowthereare7puppies
inthepen.Howmanypuppiesdidshesell?
cThepetshopownergot9rabbitsyesterday.A
familycameinandbought2ofthem.Thenthe
shopownergot8morerabbits.Howmanyrabbits
doesshehavenow?
14–5–3=______
6+______=13
12–______=7
dTherewere16fishinthebigtank.Theshopownermovedsomeofthem.Nowthereareonly9fishin
thebigtank.Howmanydidtheshopownermove?
16–______=9
eTheshopownerhad6kittens.Thenshegot
somemorekittens.Nowshehas13kittens.How
manykittensdidsheget?
CHALLENGE
2Solvetheseequations.
2+5–4+8=______
30–20+______=25
8+12+34=______
______+5=21
20+30–______=30–5
250+48+2=______
90+170+64=______
14+227–______=227–9
123+48–______=123–5
350+118+6=______
86 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
Tens&Ones
1Tellhowmanytensandonesthere
2Tellhowmanydimesandpennies
areineachsetofbasetenpieces.Then
writeanequationtoshowthetotal.
thereareineachbox.Thenwritean
equationtoshowthetotal.
example
a
10’s
1’s
3
6
example
Pennies
2
1
Equation
Equation
30 + 6 = 36
20¢ + 1¢ = 21¢
10’s
1’s
a
10’s
1’s
Dimes
Pennies
Equation
Equation
b
Dimes
b
Dimes
Pennies
Equation
Equation
c
c
10’s
10’s
Pennies
1’s
Equation
Equation
d
Dimes
1’s
Equation
d
Dimes
Pennies
Equation
© The Math Learning Center
Bridges in Mathematics nn 87
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
Nuts&Carrots
1Thesquirrelsarehidingnutsforthewinter.Threeofthesquirrelseachgot4
nuts.Fiveofthesquirrelseachgot5nuts.Howmanynutsdotheyhaveinall?
Showyourwork.
Thesquirrelsgot_______nutsinall.
CHALLENGE
2Thezookeeperbrought9bunchesofcarrotsfortheelephants.Eachbunchhad
5carrots.Hegaveoneoftheelephants24carrots.Howmanycarrotswereleft
fortheotherelephants?Showyourwork.
Therewere_______carrotsleftfortheotherelephants.
88 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
DifferentWaystoLookat300
1Usethepicturestohelpfillinthechart.
aSarabuilt300withmats.
Thereare______hundredsin300.
bHerbrothertradedineachmat
fortenstrips.
Thereare______tensin300.
cIfyoutradedinallthestripsforunits,howmanyoneswouldthatbe?
Thereare______onesin300.
2Checktomakesuretherearereally300units.Loopgroupsof10’sindifferent
colors.Thenlabelthegroupsof10.(10,20,30,…)
© The Math Learning Center
Bridges in Mathematics nn 89
PracticeBookUse anytime after Bridges,Unit 5, Session 17.
NAME
DATE
DifferentWaystoLookattheSameNumber
Tellhowmanyhundreds,tens,andonesthereareineachnumber.Usethepicturestohelp.
example
2
Thereare______hundredsin280.
28
Thereare______tensin280.
280
Thereare______onesin280.
1
Thereare______hundredsin310.
Thereare______tensin310.
Thereare______onesin310.
2
Thereare______hundredsin350.
Thereare______tensin350.
Thereare______onesin350.
3
Thereare______hundredsin230.
Thereare______tensin230.
Thereare______onesin230.
4
Thereare______hundredsin290.
Thereare______tensin290.
Thereare______onesin290.
90 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
Time&MoneyProblems
1Solvethesecoinproblems.Youcanusequarters,dimes,nickels,and/orpennies.
aDraw56¢using4coins.
bDraw66¢using5coins.
cDraw29¢using5coins.
dDraw$1.34using10coins.
2Fillinthecirclenexttothecorrecttime.
a6:156:45
b4:303:30
3Drawthetwohandsontheclocktoshowthetime.
a6:45
© The Math Learning Center
b3:30
c2:002:15
c7:15
Bridges in Mathematics nn 91
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
Hundreds,Tens&Ones
1Tellhowmanyhundreds,tens,andonesthereareineachnumber.Usethe
picturestohelp.
example
2
Thereare______hundredsin265.
26
Thereare______tensin265.
265
Thereare______onesin265.
a
Thereare______hundredsin247.
Thereare______tensin247.
Thereare______onesin247.
b
Thereare______hundredsin318.
Thereare______tensin318.
Thereare______onesin318.
CHALLENGE
2Findthenumberontherightthatmatchesthenumberontheleft.Drawaline
toshow.
a5hundreds+2tens+9ones
b42tens
c30tens+9ones
d3hundreds+49ones
92 nn Bridges in Mathematics
420ones
52tens+9ones
2hundreds+14tens+9ones
1hundred+20tens+9ones
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
Shopping&theNumberBox
1Erikawenttothestore.Shegotapencilfor15¢andatabletfor25¢.Shegave
thestorekeeper50¢.Howmuchmoneydidshegetback?Showyourwork.
Erikagot__________back.
CHALLENGE
2Usethenumbersintheboxtosolvetheproblemsbelow.
15
24
6
8
3
17
4
20
32
10
aFind2numberswhosesumis40.___________
bFind2numberswhosesumis18.___________
cFind2othernumberswhosesumis18.____________
dFind2numberswhosedifferenceis12.___________
eFind3numbersthathavethelargesttotal__________________
fWhatisthetotalofthose3numbers?Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 93
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
BaseTenAddition
Add.Usethepicturesofbasetenpiecestohelp.
1
2
28
+10
_____
3
26
+16
_____
4
34
+17
_____
5
25
+26
_____
6
16
+23
_____
7
39
+14
_____
8
23
+18
_____
9
10
24
+15
_____
94 nn Bridges in Mathematics
27
+27
_____
16
+16
_____
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
ShoppingProblems
1Alexwenttothestore.Sheboughtanorangefor25¢,anapplefor24¢,anda
bananafor23¢.Howmuchmoneydidshespendinall?Showyourwork.
Alexspent__________inall.
CHALLENGE
2Jakehasthreequartersand4nickels.Anapplecosts20¢.Howmanyapples
canJakebuy?Showyourwork.
Jakecanbuy______apples.
© The Math Learning Center
Bridges in Mathematics nn 95
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
BaseTenSubtraction
Subtract.Usethepicturesofbasetenpiecestohelp.
ex
1
36
–17
_____
28
–12
_____
19
2
3
37
–17
_____
4
32
–15
_____
5
27
–19
_____
6
39
–14
_____
7
40
–25
_____
8
9
24
–12
_____
96 nn Bridges in Mathematics
22
–8
____
30
–15
_____
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 17.
NAME
DATE
CoinProblems
1Becketthadaquarterinhisbank.Hismomgavehimanotherquarterforcarryinginthegroceries,andhefound2nickelsand3penniesinthecar.How
muchmoneydidhehaveinall?Showyourwork.
Becketthad_________inall.
CHALLENGE
2Willie,Donald,andMayafoundaquarter,adime,anickel,and2pennies
whentheywerecleaningthehouse.Theytradedtheirdadforsomeothercoins
thatwereworththesameamountofmoneyandsplitupthemoneyevenly.How
muchdidtheyeachget?Showyourwork.
Willie,Donald,andMayaeachgot_________.
© The Math Learning Center
Bridges in Mathematics nn 97
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
Adding&SubtractingTens&Nines
1Add.
40
+10
_____
40
+9
_____
16
16
+10 +9
_____
_____
55
55
+10
_____ +9
_____
78
78
67
+10
_____ +9
_____ +20
_____
72
72
24
24
+10
_____ +9
_____ +30
_____ +29
_____
36
+40
_____
2Subtract.
30
–10
_____
30
–9
_____
46
–10
_____
46
–9
_____
81
–10
_____
81
–9
_____
43
–20
_____
35
–9
_____
29
–10
_____
29
–9
_____
75
–10
_____
75
–9
_____
68
–40
_____
35
–10
_____
3Readeachoftheseclockfacesandwritethetimeonthedigitalclock.
a
98 nn Bridges in Mathematics
b
c
d
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
Wheels
1Thereare10bikesand6carsintheschoolparkinglot.Howmanywheelsin
all?Showyourwork.
Thereare_______wheelsintheparkinglot.
CHALLENGE
2Bensawsomewagonsandtrikesontheplayground.Inall,hesaw27wheels.
Howmanywagonsandhowmanytrikesdidhesee?Therearetwopossible
answers.Canyoufindbothofthem?Showyourwork.
a
b
_______wagonsand_______trikes
_______wagonsand_______trikes
© The Math Learning Center
Bridges in Mathematics nn 99
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
PlaceValuePractice
1Readeachnumber.Thenwriteitinexpandedform.
examplefifty-six
athirty-two
bseventy-five
ceighteen
dseventy-four
etwenty-eight
fninety-three
gforty-five
hsixty-seven
56 = 50 + 6
2Addthenumbers.
60+8=______
20+3=______
50+9=______
70+15=______
40+17=______
10+18=______
60+14=______
50+13=______
50+19=______
30
+19
______
60
+16
______
20
+17
______
40
+14
______
80
+11
______
40
+15
______
70
+12
______
3Circlethecorrectanswer.
aThe5in581isinthe
onesplacetensplacehundredsplace
bThe5in358isinthe
onesplacetensplacehundredsplace
cThe5in205isinthe
onesplacetensplacehundredsplace
dThe5in502isinthe
onesplacetensplacehundredsplace
100 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
PencilPuppy&Pal
1Fillinthebubblenexttothecorrectanswertoeachquestion.
aThenumberonPencilPuppy’sdogtaghasa6inthetensplace.Ithasa4in
theonesplace.Whatisthenumberonhertag?
46641467
bThenumberonPal’sdogtaghasa7inthetensplace.Ithasa3intheones
place.WhatisthenumberonPal’stag?
17373073
2Fillinthecorrectanswer.
aPencilPuppy’shousenumberhasa3inthetensplace.
Ithasa5intheonesplace.
WhatisPencilPuppy’shousenumber?___________
bPal’shousenumberhasa7intheonesplace.
Ithasa4inthetensplace.
WhatisPal’shousenumber?___________
3PencilPuppyhas43pencilsinherhouse.Palhas29pencilsinhishouse.How
manypencilsdotheyhaveinall?Usenumbers,pictures,and/orwordstosolve
theproblemandexplainyouranswer.
PencilPuppyandPalhave_______pencilsinall.
© The Math Learning Center
Bridges in Mathematics nn 101
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
2-DigitAddition
1Add.Usethepicturesofbasetenpiecestohelp.
a
b
36
+26
_____
39
+14
_____
2WhenPencilPuppydoes2-digitaddition,sheaddsthetensfirst.Next,sheadds
theones.Thensheaddsthetwonumberstogettheanswer.Tryherstrategy.
example
+
a
b
Tens
Ones
Tens
Ones
Tens
Ones
3
7
4
8
5
8
2
7
3
4
2
8
+
+
50
30 + 20 = _____
40 + 30 = _____
50 + 20 = _____
14
7 + 7 = _____
8 + 4 = _____
8 + 8 = _____
64
50 + 14 = _____
70 + 12 = _____
70 + 16 = _____
c
d
+
e
Tens
Ones
Tens
Ones
Tens
Ones
2
5
3
4
4
5
6
9
5
9
4
6
+
+
20 + 60 = _____
30 + 50 = _____
40 + 40 = _____
5 + 9 = _____
4 + 9 = _____
5 + 6 = _____
_____ + _____ = _____
_____ + _____ = _____
_____ + _____ = _____
102 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
MoreFactsThanYouNeed
Sometimesstoryproblemsgiveyoumorefactsthanyouneedtosolvetheproblem.Ineachproblembelow,crossoutthefactyoudon’tneed.Thensolvethe
problem.Showyourwork.
1Akikohas27marbles.Sarahas53marbles.Samhas24marbles.Howmany
marblesdoSaraandSamhaveinall?
SaraandSamhave_______marblesinall.
2Jennyhas12toypeople.Sheisbuildingahouseforthem.Sheused12blocks
forthefrontgate,and48blocksfortherestofthehouse.Howmanyblocksdid
Jennyuseinall?
Jennyused_______blocksinall.
3Juanhad56crayons.Hegave23ofhiscrayonstohisfriend.Juanalsogave
hisfriend15markingpens.HowmanycrayonsdoesJuanhaveleft?
Juanhas______crayonsleft.
CHALLENGE
4TheToyFactorymade90robotsonTuesday.23peopleworkatthefactory.
Theysold54oftherobotsonWednesday.Howmanyrobotsdidtheyhaveleft?
TheToyFactoryhad______robotsleft.
© The Math Learning Center
Bridges in Mathematics nn 103
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
Numbers&Clocks
1Readeachnumber.Thenwriteitinexpandedform.
example
a
b
onehundredthirty-eight
threehundredforty-two twohundredseventy-three
100 + 30 + 8
138=_______________
342=_______________
273=_______________
c
d
e
twohundredtwenty-nine fourhundredsixty-one
sixhundredeighteen
229=_______________
461=_______________
618=_______________
f
g
h
onehundredfifty-seven
ninehundredninety-nine eighthundredthirty-five
_____=_______________ _____=_______________ _____=_______________
2Writethenumbersintheboxinorderonthelinesfromleasttogreatest.
138
342
273
229
461
618
________________________________________________
least
greatest
3Readeachofthesedigitalclocksandshowthetimeontheclockface.
a
104 nn Bridges in Mathematics
b
c
d
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
Sam’sHotDogStand
1Samhasahotdogstandatthemall.Thechartbelowshowshowmanyhot
dogshesoldlastweek.Usethecharttohelpanswerthequestionsbelow.
aWhichdaydidSamsellthemosthotdogs?
bWhichdaydidSamsellthefewesthotdogs?
cHowmanyhotdogsdidSamsellonTuesday
andWednesdayputtogether?Showyourwork.
HotDogsSold
Number of
Day
Hot Dogs
Monday
119
Tuesday
125
Wednesday
163
Thursday
108
Friday
234
Saturday
345
Sunday
325
2UseoneofthesignsbelowtocomparethenumberofhotdogsSamsoldon
differentdays.
<lessthan=thesameas>greaterthan
ex125______345
a325______108
b108______119
c234______164
d163______345
e325______234
3Putthenumbersfromthechart(inproblem1)inorderfromleasttogreatest
onthelinesbelow.
_____,_____,_____,_____,_____,_____,_____
least
greatest
CHALLENGE
4HowmanyhotdogsdidSamsellaltogether?Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 105
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
2-DigitSubtraction
DJHoppermakeshopsonthenumberlinetosolve2-digitsubtractionproblems.
Here’showhesolved53–26:
• Startat26.
• Hopupto30.
• Nowhopupto50.
• Thenhopupto53andaddupallyourhops.Thattellshowfaritisfrom26to53.
53–26
+4
26
+20
+3
50
30
53
4 + 20 + 3 = 27
27
___________________
so 53 – 26 = ______
1
Try DJ’s number line strategy to solve these subtraction problems.
a45–17
20
17
40
45
___________________so45–17=______
b54–25
25
30
50
54
___________________so54–25=______
c57–18
18
57
___________________so57–18=______
106 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
ThePetGraph
1ThesecondgradersinMs.Nelson’sclassmadeagraphwithpicturestoshow
theirfavoritepets.Eachstudentputonepictureonthegraphtoshowhisorher
favoritepet.Usetheirgraphtohelpanswerthequestionsbelow.
OurFavoritePets
Fish
Birds
Cats
Dogs
aWhichpetdidmostkidslikethebest?_______________
bHowmanymorekidslikedogsthanfishthebest?____________
cHowmanyfewerkidslikebirdsthancatsthebest?_____________
dWriteanumbersentencetoshowhowmanykidsputpicturesonthisgraph.
2ThekidsinMs.Nelson’sclassdidasurveyofallthesecondgradestofindout
aboutkids’favoritepets.Usetheircharttohelpanswerthequestionsbelow.
aHowmanymorekidslikefishthanbirdsthebest?
Showyourwork.
bHowmanymorekidslikedogsthancatsthebest?
2ndGradeFavoritePets
Pet
Number of Kids
Fish
17
Birds
8
Cats
45
Dogs
62
Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 107
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
More2-DigitAddition
1Add.Usethepicturesofbasetenpiecestohelp.
a
b
28
+13
_____
36
+12
_____
2Addthenumbers.
70+8=_____40+7=_____30+16=_____20+13=______
3UsePencilPuppy’sstrategyforadding2-digitnumbers.Remember,
sheaddsthetensfirst.Thensheaddstheones.Thenshefindsthetotal.
example
a
Tens
Ones
Tens
Ones
Tens
Ones
5
8
4
3
2
7
3
9
4
5
70
+
b
16
2
+
8
70 + _____
16 = _____
86
_____
c
_____ + _____ = _____
d
+
+
_____ + _____ = _____
e
Tens
Ones
Tens
Ones
Tens
Ones
1
6
3
7
3
3
2
2
5
3
5
8
_____ + _____ = _____
108 nn Bridges in Mathematics
+
_____ + _____ = _____
+
_____ + _____ = _____
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 5, Session 35.
NAME
DATE
More2-DigitSubtraction
UseDJ’snumberlinestrategytosolvethesesubtractionproblems.
example64–35
+5
35
+20
+4
60
40
64
5 + 20 + 4 = 29
29
___________________so64–35=______
160–32
32
60
40
___________________so60–32=______
254–27
27
54
___________________so54–27=______
371–26
26
71
___________________so71–26=______
© The Math Learning Center
Bridges in Mathematics nn 109
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
WhichMakestheMostSense?
1Foreachproblembelow,circletheestimateyouthinkisbest.Onthelasttwo,
explainwhyyouchosetheestimateyoudid.Hint: Make your own pictures to help.
Problem & Picture
a
35
+26
____
Estimate
50
60
Problem & Picture
b
24
+24
____
70
c
49
+39
____
70
80
30
40
50
d
37
+24
____
90
Why?
Estimate
50
60
70
Why?
2Foreachproblembelow,circletheestimateyouthinkisbest.Onthelasttwo,
explainwhyyouchosetheestimateyoudid.Hint: Make your own pictures to help.
Problem & Picture
a
Estimate
15
45
–29
____
c
Why?
110 nn Bridges in Mathematics
b
25
30
35
Estimate
30
52
–18
____
20
25
50
–24
____
Problem & Picture
d
40
50
30
60
–29
____
40
50
Why?
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
EstimationProblems
1Dorawenttothemallyesterday.Shegotat-shirtfor$9.99andanewCDfor
$6.99.Abouthowmuchmoneydidshespendinall?Circletheestimateyouthink
isbest.
$15.00
$16.00
$17.00
$20.00
2Maxgot$50.00forhisbirthday.Hebought2videogamesfor$14.00each.
Abouthowmuchmoneydoeshehaveleft?Circletheestimateyouthinkisbest.
$10.00
$20.00
$30.00
$40.00
3Janelismakingaquilt.Sheneeds100squaresoffabricinall.Shecut29
squaresthismorningand39moresquaresthisafternoon.Abouthowmany
squaresdoesshehavelefttocut?Circletheestimateyouthinkisbest.
10squares
20squares
30squares
40squares
4Geraldwantstoread75booksbytheendoftheyear.Sofar,hehasread18
fantasybooksand21sciencebooks.Abouthowmanybooksdoeshehaveleftto
read?Circletheestimateyouthinkisbest.
15books
25books
35books
45books
5ThesecondgradersatKingSchoolarerecyclingcans.
Day
Monday
Tuesday
Wednesday
Thursday
NumberofCans
57
98
45
105
Abouthowmanycanshavetheyrecycledsofar?Circletheestimateyouthinkisbest.
200cans
© The Math Learning Center
300cans
400cans
1,000cans
Bridges in Mathematics nn 111
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
Adding&SubtractingPractice
1Add.
9
+6
_____
9
+9
_____
10
+7
_____
9
+7
_____
10
+6
_____
9
+10
_____
9
+4
_____
9
+3
_____
10
+7
_____
11
+9
_____
8
+9
_____
4
+10
_____
9
+5
_____
2
+9
_____
20
+9
_____
40
+12
_____
30
+8
_____
60
+15
_____
30
+17
_____
90
+8
_____
80
+14
_____
20
+29
_____
32
+20
_____
58
+30
_____
62
+20
_____
40
+39
_____
70
+23
_____
75
+10
_____
2Subtract.
16
–10
_____
16
–9
_____
13
–10
_____
13
–9
_____
18
–10
_____
18
–9
_____
20
–10
_____
50
–10
_____
40
–20
_____
30
–10
_____
60
–40
_____
70
–30
_____
90
–40
_____
80
–60
_____
26
–10
_____
35
–10
_____
78
–20
_____
64
–30
_____
55
–40
_____
38
–20
_____
58
–20
_____
112 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
Grandma’sButtonBox
Dylan’sgrandmahasaboxofbuttons.OnedayDylansortedthebuttonsintodifferentgroupsandcountedhowmanyineachgroup.Hemadeacharttoshowhiswork.
1HelpDylanmakeabargraphtoshowhiswork.Givethegraphatitleandcolor
inthecolumnstoshowhowmanybuttonsofeachcolorhefound.
KindofButton HowMany
14
Red
Title _________________________________
30
Gold
25
White
26
Blue
10
24
Purple
Black
5
22
22
20
altogether?Showyourwork.
26
Number of Buttons
2Howmanybuttonswereinthebox
28
18
16
14
12
10
8
6
4
2
Black
Purple
Blue
White
Gold
Red
0
Button Color
Therewere_______buttonsinthebox
altogether.
© The Math Learning Center
Bridges in Mathematics nn 113
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
2-DigitAdditionPractice
1Add.Usethepicturesofbasetenpiecestohelp.
a
b
17
+25
____
24
+36
____
2Addthenumbers.
21+8=______42+7=______32+16=______24+13=______
3UsePencilPuppy’sstrategyforadding2-digitnumbers.Remember,
sheaddsthetensfirst.Thensheaddstheones.Thenshefindsthetotal.
example
a
b
Tens
Ones
Tens
Ones
Tens
Ones
3
7
3
5
6
3
2
8
2
8
60
11
+
3
+
4
60 + _____
11 = _____
71
_____
c
_____ + _____ = _____
d
+
+
_____ + _____ = _____
e
Tens
Ones
Tens
Ones
Tens
Ones
4
4
4
5
2
8
2
9
5
2
3
9
_____ + _____ = _____
114 nn Bridges in Mathematics
+
_____ + _____ = _____
+
_____ + _____ = _____
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
Lines&Buttons
1aTamiisstandinginline.Thereare3childreninfrontofher.Thereare8childrenbehindher.Howmanychildrenarestandinginline?Showyourwork.
bThereare_____childrenstandinginline.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Makeachart.Writeanumbersentence.Other
CHALLENGE
2aFrank’smomgavehim8buttons.Thebuttonshave22holesinall.How
manyofthe8buttonshave4holes?Howmanyofthe8buttonshave2holes?
Showyourwork.
b_____ofthe8buttonshave4holes._____ofthe8buttonshave2holes.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Makeachart.Writeanumbersentence.Other
© The Math Learning Center
Bridges in Mathematics nn 115
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
Time&Money
1Readeachoftheseclockfacesandwritethetimeonthedigitalclock.
a
b
c
d
2Countthemoneyineachsetandcirclethecorrectamount.
a
b
36¢
58¢
66¢
76¢
40¢
90¢
$1.00
$1.15
3Circleallthecorrectvaluesforeachsetofcoins.
a
116 nn Bridges in Mathematics
2quarters
2nickels
50¢
$0.50
halfadollar
b
30¢
$0.25
25¢
3dimes
$0.15
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
Cubes&Homework
1aEbonyput10cubesintotwostacks.Onestackhas4morecubesthanthe
otherstack.Howmanycubesareineachstack?Showyourwork.
bThereare______cubesinonestackand______cubesintheotherstack.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Actitoutwithcubes.Makealist.Other
CHALLENGE
2aJosehasabagofmarbles.Thereare8redmarblesinthebag.Thereare
twiceasmanygreenmarblesasredmarbles.Thereare2fewerbluemarbles
thangreenmarbles.Therearehalfasmanywhitemarblesasbluemarbles.How
manymarblesareinthebag?Showyourwork.
bThereare________marblesinthebag.
cWhichstrategydidyouusetosolvethisproblem?(Circleone.)
Drawapicture.Actitoutwithcubes.Makealist.Other
© The Math Learning Center
Bridges in Mathematics nn 117
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
MorePlaceValuePractice
1Countby10’s,eitherforwardorbackward,tofillinthemissingnumbers.
a10,20,30,40,_____,_____,_____,80,_____,100,110,_____,_____
b280,270,260,_____,_____,230,_____,_____,200,_____,_____
c203,213,223,_____,_____,253,_____,_____,_____,293,_____
d567,557,547,537,_____,_____,507,_____,487,_____,467
2Countby100’s,eitherforwardorbackward,tofillinthemissingnumbers.
a100,200,300,________,________,________,700,________,________
b950,850,750,________,________,________,350,________,________
c203,303,403,________,________,________,803,________,1003
d914,814,714,________,________,414,________,________,________
3Addthenumbers.
400+70+2=________
600+20+8=________
800+50+5=________
100+10+3=________
200
50
+9
______
300
80
+1
______
700
40
+2
______
200
60
+0
______
400
40
+4
______
100
10
+7
______
900
90
+9
______
4Circletheanswerineachofthequestionsbelow.
aThe3in359isinthe
bThe4in904isinthe
cThe5in256isinthe
118 nn Bridges in Mathematics
onesplacetensplacehundredsplace
onesplacetensplacehundredsplace
onesplacetensplacehundredsplace
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
Homework&100
1Jamalisdoinghismathhomework.Hejustgot24forananswer.Whatwasthe
question?Writedownatleast3differentideasbelow.
CHALLENGE
2Writeatleast10differentequationsfor120.Youcanuseaddition,subtraction,
multiplication,ordivision.
© The Math Learning Center
Bridges in Mathematics nn 119
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
2-DigitSubtractionPractice
DJlikestomakehopsonthenumberlinetosolve2-digitsubtractionproblems,
likethis:
54–25
+5
25
+20
30
+4
50
54
5 + 20 + 4 = 29
29
___________________so54–25=_______
1Solveeachofthesubtractionproblemsbelow.YoucanuseDJ’snumberline
strategyorsomeotherwaytosolvetheproblem.Showyourworkeachtime.
a56–29
___________________so56–29=_______
b70–36
___________________so70–36=_______
c63–19
___________________so63–19=_______
120 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 6, Session 13.
NAME
DATE
MakeYourOwnProblems
Fillintheblankswithwordsthatmakesenseandseeminteresting.Solveeach
problem.Showyourwork.
Fill in the blanks.
Work Space
1Kendrahas57_____________inhertopdrawer.
Shehas28____________inherbottomdrawer.
Howmanyarethereinall?_________________
2Linspent39dollarsfora_________________.
Hespent18dollarsfora___________________.
Howmuchdidhespendinall?______________
3Akikohad72___________________________.
Shegave26ofthemtoherfriend.
Howmanydoesshehaveleft?______________
4Mr.Smithbaked48_____________________.
Thedoggot19ofthem.
Howmanyareleft?_______________________
5Franksaw51__________________________.
24ofthemflewaway.
Howmanywereleft?_____________________
© The Math Learning Center
Bridges in Mathematics nn 121
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
SolvingEquations
1Fillinthemissingnumbers.
a15=_____+7
b5+_____=13
c14–_____=8
d16–_____=7
e9+6=_____+8
f12–5=4+_____
g13–7=3+_____
2Fillinthemissingnumbers.
40+50=_____
30+_____=60
_____+70=90
25+35=_____
25+_____=50
_____+40=85
80–40=_____
70–_____=20
_____–30=30
95–40=_____
55–_____=35
_____–25=25
CHALLENGE
3Fillinthemissingnumbers.
250=_____+6
122 nn Bridges in Mathematics
90+70=_____+17
140–60=30+_____
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
Apples&OrangeSlices
1Thereare4basketsonthetable.Eachbaskethas12applesinit.Howmany
applesarethereinall?Showyourwork.Marktheanswerclearly.
Thereare_______apples.
CHALLENGE
2Thereare4platesonthetable.Eachplatehas12orangeslicesonit.Eachorange
slicehas3seeds.Howmanyseedsinall?Showyourwork.Marktheanswerclearly.
Thereare_______seeds.
© The Math Learning Center
Bridges in Mathematics nn 123
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
TheSecondGradersCleanTheirDesks
OnFridayafternoon,Mrs.Nelsonaskedhersecondgraderstocleantheirdesks.
Thischartshowstheextrathingsthekidsfoundintheirdesks.
1Finishthegraphontheright.Giveitatitle.Colorinthecolumnstoshowwhat
thekidsfoundintheirdesks.
ExtraThings
Extra pencils
Extra pairs of scissors
Extra glue sticks
Extra erasers
Overdue library books
2Howmanymorepencilsthanerasersdidthekidsfind?Showyourwork.
Title _________________________________
45
42
39
36
33
Number of Extra Things
Number
44
18
12
15
9
30
27
24
21
18
15
12
9
6
Books
Erasers
Glue Sticks
findinall?Showyourwork.
0
Scissors
3Howmanyextrathingsdidthey
3
Pencils
CHALLENGE
Extra Things
124 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
MeasuringProblems
1aHereare2lines.Putanxontheoneyouthinkisshorter.
A
B
bMeasureeachline.Usethecentimetersideofyourruler.
LineAis_______centimeterslong.
LineBis_______centimeterslong.
cWhichlineisshorter?(Circleone.) LineA LineB
dHowmuchshorterisit?Showyourwork.Marktheanswerclearly.
2aHereare2crookedlines.Putanxontheoneyouthinkislonger.
C
D
bMeasureeachcrookedline.Usethecentimetersideofyourruler.
CrookedlineCis________centimeterslong.
CrookedlineDis________centimeterslong.
cWhichcrookedlineislonger?(Circleone.)
CrookedLineCCrookedLineD
dHowmuchlongerisit?Showyourwork.Marktheanswerclearly.
© The Math Learning Center
Bridges in Mathematics nn 125
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
Fractions
1Whatpartofeachrectangleiscolored?Circlethecorrectfraction.
a
b
1
3
2
2
1
2
3
4
c
1
4
2
4
1
3
3
6
3
4
2
4
3
3
5
4
d
2
3
1
2
3
4
1
3
2Readeachfractionandcolorinthatpartoftheshape.
a
b
2
4
c
d
1
6
126 nn Bridges in Mathematics
3
4
3
6
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
TheArmyAntsMeasureUp
Hi!Iamaworkerarmyant.Iamonecentimeterlong.
My10armyantfriendsmakealinethatis10centimeters,or1decimeterlong.
1Listfourdifferentthingsonyouorinyourdeskthatareaboutthesamelength
asadecimeter.
2Useyourrulertohelpdrawalinebelowthatisexactly15centimeterslong.
Howmanyofusarmyantscouldstandonyourline?
3100ofmyarmyantfriendswouldmakealinethatis100centimeters,or1
meterlong.That’saboutthesameasthedistancebetweenthefloorandthedoorknobofyourclassroomdoor.
Listfourdifferentthingsinyourclassroomthat
areaboutthesamelengthasameter.
× 100
© The Math Learning Center
Bridges in Mathematics nn 127
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
PlaceValueReview
1Circletheplacevalueoftheunderlineddigit.Thenwriteitsvalue.
Number
exa
Place Value
Value
Number
exb
238
ones
tens
hundreds
b
743
ones
tens
hundreds
d
150
ones
tens
hundreds
a
c
30
Place Value
109
ones
tens
hundreds
253
ones
tens
hundreds
608
ones
tens
hundreds
Value
9
2Writeoneofthesesignsoneachlinetomakethesentencetrue.
<lessthan=thesameas>greaterthan
<
ex456_____546
a85_____58
b327_____372
c106_____610
d218_____218
f204_____240
g483_____438
e735_____573
3Fillinthemissingdigitstomakeeachstatementtrue.Thereismorethanone
rightanswerforeachone.
ex
a
2
3___7<347
d
4___3>463
128 nn Bridges in Mathematics
b
235>___35
e
307<___07
f
1___9<139
c
135<13___
g
182>1___2
514<51___
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
MoreaboutMeters
Ameterisaboutthesameasthedistancebetweenthefloorandthedoorknobof
yourclassroomdoor.Lookatthedoorinyourclassroom,orameterstickifyouhave
one.Nowthinkabouthowlong20meterswouldbe,andanswerthesequestions:
1Ifyouwalkedacrossyourclassroomthelongway,would
yougomoreorlessthan20meters?
2Isitmoreorlessthan20metersfromyourclassroom
doortotheofficedoor?
1 meter
3Howlongwouldittakeyoutorun20meters?Circletheanswerthatmakesthe
mostsense.
10seconds10minutes10hours
4Listatleast2differentanimalsthatmighttake10minutestotravel20meters.
5Whichunitwouldyouusetomeasurethelengthofasoccerfield?(Circleone.)
centimetersmetersinchesmiles
6Whichunitwouldyouusetomeasurethelengthofacrayon?(Circleone.)
centimetersmetersfeetmiles
CHALLENGE
7Thecircumference,ordistancearound,asoccerballis68centimeters.Isthat
longerorshorterthanonemeter?Byhowmuch?Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 129
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
Adding&Subtracting
1Addthenumbers.
80
+6
____
30
+43
____
44
+24
____
50
+38
____
70
+7
____
51
+17
____
60
+16
____
370
120
890
360
340
430
125
+8+6+4+15+50
____
____
____
____
____+27+25
____
____
2Usepictures,numbers,and/orwordstoaddthenumbersineachbox.Showall
yourwork.
a36+55
3
Subtract the numbers.
86
– 6
____
b129+133
39
– 9
____
48
– 7
____
56
– 5
____
35
– 15
____
55
– 25
____
50
– 25
____
4
Use pictures, numbers, and/or words to subtract the numbers in the box. Show
all your work.
51–26
130 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
Crayons
8
Small 79¢
24
Medium 99¢
64
Large $1.50
Youcangetboxesofcrayonsin3differentsizesatthestore.Usethepictures
abovetohelpsolvetheseproblems.
1Ernieboughtasmallboxofcrayons.Hegavetheclerka$1.00bill.Howmuch
moneydidhegetback?Showyourwork.Marktheanswerclearly.
2Emmawantstogetamediumboxofcrayonsforhersisterandalargeboxof
crayonsforherself.Howmanycrayonswillthatbeinall?Showyourwork.Mark
theanswerclearly.
3Emmaonlyhas$2.00inherpocket.Isthatenoughmoneytobuyamedium
andalargeboxofcrayons?Explainyouranswer.
© The Math Learning Center
Bridges in Mathematics nn 131
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
Pedro’sBirthday
Pedro’sbirthdayisonApril30.Usethecalendartohelpsolvetheproblemsbelow.
1WhatdayoftheweekisPedro’s
birthdaythisyear?
Sun.
2Earlyinthemonth,Pedrosaid,
April
Mon. Tues. Wed. Thurs.
Fri.
Sat.
1
2
3
4
5
6
“Mom,guesswhat?It’sonly27more
daysuntilmybirthday!”
7
8
9
10
11
12
13
aWhatwasthedateonthatday?
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
bExplainyouranswer.
3OnApril9th,Pedrosaid,“Nowit’sonly3moreweeksuntilmybirthday.”How
manydaysaretherein3weeks?Showyourwork.
4OnApril______,Pedrosaid,“Nowit’sonly3moredaysuntilmybirthday.”
Howmanyhoursaretherein3days?Showyourwork.
5aOnApril30,Pedrosaid,“Mypartystartsat12:30.It’s9:30now!”Howmany
hoursisituntilPedro’sparty?
bHowmanyminutesaretherein3hours?Showyourwork.
132 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 14.
NAME
DATE
MoreCrayonProblems
8
Small 79¢
24
Medium 99¢
64
Large $1.50
Youcangetboxesofcrayonsin3differentsizesatthestore.Usethepictures
abovetohelpsolvetheseproblems.
1Samboughttwosmallboxesofcrayons.Hegavetheclerk$2.00.Howmuch
changedidheget?Showyourwork.
CHALLENGE
2Ms.Fernandezbought10mediumboxesofcrayonsforhersecondgraders.
Thensheboughtalargeboxofcrayonsforherself.Shegavetheclerka$20bill.
Howmuchchangedidsheget?Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 133
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
Digits&NumberRiddles
1Tellwhatdigitisineachplace.
____isinthetensplace.
a289
c316
e5,687
____isintheonesplace.
____isintheonesplace.
b945
____isinthehundredsplace.
____isinthehundredsplace.
____isinthetensplace.
____isinthetensplace.
____isintheonesplace.
____isinthehundredsplace.
d405
____isinthetensplace.
____isintheonesplace.
____isinthehundredsplace.
____isinthetensplace.
____isintheonesplace.
____isintheonesplace.
____isinthehundredsplace.
____isinthethousandsplace.
f4,301
____isinthehundredsplace.
____isinthetensplace.
____isinthethousandsplace.
CHALLENGE
2Solvethesenumberriddles.
a Ihavea4inthetensplace.
bIhavea7inthehundredsplace.
• Ihavea1inthehundredsplace.
• Thenumberinmyonesplaceis
morethan6andlessthan9.
• Iamanoddnumber.
• Ihavea0inthetensplace.
• Ihavea3inthethousandsplace.
• Thenumberinmyonesplaceisless
than3.
• Iamanevennumber.
WhatnumberamI?
WhatnumberamI?
134 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
TheToyStore
Doll $8.00
Toy Store Price List
(prices include tax)
Skates $29.00 Puppet $6.00
Soccer Ball $13.00
1Ezragot$50.00forhisbirthday.Heboughtasoccerballatthetoystore.How
muchmoneydidhehaveleft?Showyourwork.Marktheanswerclearly.
CHALLENGE
2Mayawentintothetoystorewith$50.00.Shebought3differenttoysandgot
$2.00backinchange.Whichthreetoysdidshebuy?Showyourwork.Markthe
answerclearly.
© The Math Learning Center
Bridges in Mathematics nn 135
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
EnoughTimeintheDay
1Drawalinefromeachdigitalclocktothematchingtimeontheclockface.
a
b
c
d
2It’s8:20andHenry’sbigsisterisreadyforschool.Herbusleavesat8:35.How
muchtimedoesshehavetogettothebusstop?(Circleone.)
10seconds10minutes15minutes20minutes
3Henryisinsecondgrade.Hisschoolstartsat8:15.Hehaslunchat12:15.How
manyhoursaretherebetweenstartingtimeandlunchtime?
4Thereare60minutesinanhour.Howmanyminutesaretherein4hours?
Showyourwork.
136 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
MoreToyStoreProblems
Frisbee $3.50
Hat $4.99
Toy Store Price List
(prices include tax)
Ball $4.50
Yo-yo $5.00
Kite $2.99
1Lanihastwinbrothers.Theirbirthdayistomorrow.Laniboughtahatforoneof
theboysandakitefortheother.Howmuchdidshespendinall?Showyourwork.
Lanispent_____________inall.
CHALLENGE
2Samishavingabirthdayparty.Sam’sdadboughtakiteforeachofthekidscomingtotheparty.Hespent$14.95.HowmanykidsdidSaminvite?Showyourwork.
Saminvited_____________kids.
© The Math Learning Center
Bridges in Mathematics nn 137
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
MoreFractions
1Whatpartofeachsetofcirclesiscolored?Circlethecorrectfraction.
a
b
1
4
2
4
1
3
2
2
c
3
4
2
3
1
3
3
2
3
3
4
6
1
2
1
3
d
3
4
4
3
1
3
4
4
2Followthedirectionstocompleteeachpictureandthenfillinthefraction.
aColor 16 ofthehexagonyellow.
bColor 24 ofthesquarered.
•Color 26 ofthehexagonpurple.
•Color 14 ofthesquareblue.
•Colortherestofthehexagongreen. •Colortherestofthesquarebrown.
•Writeafractionbelowtoshowwhat •Writeafractionbelowtoshowwhat
partofthehexagonisgreen.
138 nn Bridges in Mathematics
partofthesquareisbrown.
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
Pizza Problems
DavidandSaraeachgotamini-pizzaexactlythesamesize.Davidcuthispizza
into4equalpieces.Saracutherpizzainto6equalpieces.
1Whohadbiggerpieces?Drawonthecirclesbelowtohelpsolvethisproblem.
__________________ hadbiggerpieces.
CHALLENGE
2Davidate3ofhispieces.Sarahate4ofherpieces.Whoatemorepizza?Use
pictures,numbers,and/orwordstoexplainyouranswer.
____________________ atemorepizza.
© The Math Learning Center
Bridges in Mathematics nn 139
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
Reading&WritingNumbers
1Readeachnumber.Thenwriteitinexpandedform.
examplefourhundredfifteen
atwohundredeighty-six
415 = 400 + 10 + 5
bsevenhundredfifty-three
csixhundredtwenty-one
dthreehundredforty-seven
eninehundredseventeen
fonehundredsixty
geighthundredfour
2Addthenumbers.
500+20+8=_______ 200+20+2=_______
100+70+1=_______
700+10+9=_______ 800+40+7=_______
500+3=_______
200
90
+1
_____
300
10
+9
_____
200
20
+6
_____
400
50
+2
_____
900
90
+9
_____
300
40
+1
_____
400
10
+8
_____
3Circlethenumberthathasthesamevalueastheexpandedform.
a300+6
36336306316
140 nn Bridges in Mathematics
b200+10+7
207217271721
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
HowLongIsaShark?
Therearemanydifferenttypesofsharks.Somearelongerthanothers.This
chartshowshowlongsomeofthedifferentsharksare.Useittohelpanswerthe
questionsbelow.
SharkLengths
SharkName
AverageLength(incentimeters)*
White Shark
204 centimeters
Bignose Shark
174 centimeters
Night Shark
154 centimeters
Bigeye Thresher Shark
312 centimeters
Tiger Shark
247 centimeters
Thresher Shark
373 centimeters
1Whichsharkonthechartisthelongest?_______________________________
2Whichsharkonthechartistheshortest?_______________________________
3Writeoneofthesesymbolsoneachblanktomakethesentencetrue.
<lessthan=thesameas>greaterthan
aLengthofaTigerShark_______LengthofaWhiteShark
bLengthofaBignoseShark_______LengthofaTigerShark
4Putthelengthsofthesharksinorderfromleasttogreatest.
__________,__________,__________,__________,__________,__________
least
greatest
5HowmuchlongerisaThresherSharkthanaTigerShark?Showyourwork.
Marktheanswerclearly.
*Source:http://na.nefsc.noaa.gov/sharks/
© The Math Learning Center
Bridges in Mathematics nn 141
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
Addition&SubtractionPractice
1Addthenumbers.
40
+3
_____
20
+38
_____
57
+31
_____
50
+16
_____
340
+20
_____
562
+35
_____
225
325
325
450
+15+25+26
_____
_____
_____+50
_____
290
+9
_____
75
+25
_____
34
+34
_____
35
+35
_____
2Usepictures,numbers,and/orwordstoaddthenumbersineachbox.Showall
yourwork.
a47+47
b148+122
3Subtractthenumbers.
49
–9
_____
50
–10
_____
67
–23
_____
50
–25
_____
45
–15
_____
30
–15
_____
100
–75
_____
4Chooseoneoftheproblemsinthebox.Circleit.Thensolveit.Usepictures,
numbers,and/orwordstohelp.Showallyourwork.
35–1550–2583–49123–99
142 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
MariaJose’sDay
MariaJoseisinsecondgrade.Thechartbelowshowssomeofthethingsshedoes
everyTuesday,andwhenshedoesthem.FinishthechartbycirclingA.M.or
P.M.foreachtimeanddrawingthehandsontheclockfaces.
Hint
A.M. means times in the morning between midnight and noon.
P.M. means times in the afternoon and evening between noon and midnight.
Event
Time
A.M. or P.M.
Clock
aBreakfast
7:05
A.M.
P.M.
bArriveatSchool
8:15
A.M.
P.M.
cLunch
11:55
A.M.
P.M.
dSoccerPractice
4:10
A.M.
P.M.
eDinner
6:30
© The Math Learning Center
A.M.
P.M.
Bridges in Mathematics nn 143
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
MoreNumberPatterns
1Fillinthemissingnumbersintheseskip-countingpatterns.
a15,25,35,_____,55,_____,75,_____,_____,_____,115,125
b6,12,18,_____,_____,36,_____,_____,_____,60,66,_____
c105,110,115,_____,_____,130,_____,_____,145,_____,155
d13,113,213,_____,413_____,613,_____,_____,_____
2DJandHopperarejumpingfromstonetostonetogetacrossthestream.
Thereareninestonesinall.Thereisexactly1footbetweeneachstone,and
thereare12inchesinafoot.Finishthetablebelowtoseehowmanyinchesthe
frogshavetojumptogetallthewayacrossthestream.
Feet
1
2
Inches
12
24
3
4
5
6
7
8
9
60
CHALLENGE
3ThepathfromDJ’shousetothestreamis27feetlong.Thereare3feetina
yard.HowmanyyardsisitfromDJ’shousetothestream?Showyourwork.
144 nn Bridges in Mathematics
© The Math Learning Center
PracticeBookUse anytime after Bridges, Unit 7, Session 25.
NAME
DATE
Breanna’sPockets
1Breannahasapairofshortswith4pockets.Shehasmoneyineachpocket.
Finishthechartbelowtoseehowmuch.
Pocket
Quarters
Dimes
Nickels
Pennies
Total
a
2
2
1
2
77¢
b
1
0
5
9
c
3
0
1
3
d
0
4
3
1
2InwhichpocketdoesBreannahavethemostmoney?__________
3InwhichpocketdoesBreannahavetheleastmoney?__________
4Breannawantstobuyatoyfor$3.00.Shethinksshehasenoughmoneyinher
pockets.Doyouagree?Explainyouranswer.
5HowmuchmoneydoesBreannareallyhaveinher4pockets?Showyourwork.
CHALLENGE
6Breannabought3pencilsattheschoolstore.Theyeachcost29¢.Howmuch
moneydidshehaveleftinherpocketsaftershepaidforthepencils?Showyourwork.
© The Math Learning Center
Bridges in Mathematics nn 145
146 nn Bridges in Mathematics
© The Math Learning Center