Unit 7

Date:
P
H A TE
R
C
Name:
7
Multiplication
Worksheet 1
Mental Multiplication
Write three multiplication sentences using three methods.
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Example
There are 5 apples on each branch.
Jay picks all the apples off of 4 branches.
How many apples does Jay pick?
1.
2.
a.
5
⫹
5
⫹
5
b.
5
⫻
4
⫽
20
c.
4
⫻
5
⫽
20
⫹
5
⫽
20
Aiesha puts 10 eggs in each carton.
She fills 3 cartons.
How many eggs are in the cartons?
a.
⫹
⫹
b.
⫻
⫽
c.
⫻
⫽
⫽
Susan crochets 4 scarfs in a week.
How many scarfs can she crochet in 3 weeks?
a.
⫹
⫹
b.
⫻
⫽
c.
⫻
⫽
⫽
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Fill in the missing numbers.
Example
3
groups of 2
3.
3 groups of 4 4.
2 groups of 7 7 groups of
5.
6 groups of 9 9 groups of
groups of 3
Complete the related multiplication facts.
Example
34
12
So, 4 3 6.
27
So, 7 2 7.
58
So, 8 5 8.
39
So, 9 3 9.
47
So, 7 4 10.
68
So, 8 6 124
12
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2 groups of 3 Chapter 7 Lesson 7.1
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Multiply. Use mental math.
Example
35
15
11.
43
12.
28
13.
63
14.
72
15.
44
16.
45
17.
92
18.
2 10 Fill in the missing numbers.
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Example
64
1
group of 4 5 groups of 4
19.
87
groups of 7 5 groups of 7
20.
79
groups of 9 5 groups of 9
21.
68
group of 8 5 groups of 8
22.
76
groups of 6 5 groups of 6
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Multiply.
Example
73
21
7353
23.
15
21
2x3
6
84
8454
24.
67
6757
25.
98
9 8 10 8 26.
87
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126
Chapter 7 Lesson 7.1
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Multiply.
Example
64
24
27.
76
28.
86
29.
96
30.
77
31.
88
32.
69
33.
78
34.
68
Fill in the missing numbers.
Example
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4 tens 40
, 4 hundreds 35.
7 tens , 7 hundreds 36.
8 tens , 8 hundreds 37.
9 tens , 9 hundreds 400
Fill in the missing numbers.
Example
30 3
tens, 300 3
hundreds 30
tens
38.
60 tens, 600 hundreds tens
39.
70 tens, 700 hundreds tens
40.
90 tens, 900 hundreds tens
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Fill in the missing numbers.
Example
a. 4 3 tens 12 tens
b. 4 3 hundreds 12 hundreds
120
1,200
4 30 120
a. 5 7 tens tens
b. 5 7 hundreds 5 70 42.
5 700 a. 6 8 tens tens
b. 6 8 hundreds 6 80 6 800 Multiply. Use mental math.
43.
7 30 44.
8 400 45.
4 900 46.
60 7 47.
800 7 48.
7 90 128
hundreds
hundreds
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41.
4 300 1,200
Chapter 7 Lesson 7.1
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Worksheet 2
Multiplying Without Regrouping
Fill in the missing numbers.
Example
3 2
3
9 6
Step 1
3
2
ones 6
ones
Step 2
3
3
tens 9
tens
3 32 © 2009 Marshall Cavendish International (Singapore) Private Limited. Copying is permitted; see page ii.
1.
4 3
2
9
tens
96
6
ones
96 is the product
of 32 and 3.
Step 1
2
ones ones
Step 2
2
tens tens
2 43 tens
ones
2.
2 3
3
Step 1
3
ones ones
Step 2
3
tens tens
3 23 tens
ones
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Fill in the missing numbers.
Step 1
2
3
ones 6
ones
Step 2
2
4
tens 8
tens
Step 3
2
2
hundreds 2 243 4
3.
3 3 2
3
hundreds
8
tens
4
6
hundreds
ones
486
Step 1
3
ones ones
Step 2
3
tens tens
Step 3
3
hundreds 3 332 hundreds
tens
hundreds
ones
4.
1 2 1
4
Step 1
4
one ones
Step 2
4
tens tens
Step 3
4
hundred 4 121 130
hundreds
tens
hundreds
ones
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Example
2 4 3
2
4 8 6
Chapter 7 Lesson 7.2
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Date:
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Multiply.
5.
4 4
⫻ 2
6.
2 3
⫻ 3
7.
1 2
⫻ 4
8.
3 3
⫻ 2
9.
2 3 2
⫻
2
10.
1 1 2
⫻
4
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11.
3 4 3
⫻
2
12.
2 2 1
⫻
3
13.
2 0 1
⫻
4
14.
4 2 4
⫻
2
132
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Chapter 7 Lesson 7.2
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Worksheet 3
Multiplying Ones, Tens, and Hundreds
with Regrouping
Fill in the blanks.
Example
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13 ones ⫽
1
ten
3
ones
1.
17 ones ⫽
2.
15 ones ⫽ 1
5
3.
19 ones ⫽ 1
9
4.
12 tens ⫽
hundred
tens
5.
16 tens ⫽
hundred
tens
6.
14 tens ⫽ 1
4
7.
18 tens ⫽ 1
8
ten
ones
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Fill in the missing numbers.
Step 1
3 57 6 4
4
7
Step 2
8.
3
2
3
1
ones tens
5
1
tens ones
one
15
tens
2
tens 15
tens 17
17
tens 1
hundred
7
tens
1
7
hundred
tens
tens
one
171
Step 1
4
ones Step 2
ten
4
tens tens
tens tens 4 64 hundreds
ones
ones
ten 134
21
tens
hundreds
tens
tens
ones
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Example
5 7
3
1 7 1
Chapter 7 Lesson 7.3
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9.
Date:
3 6
5
Step 1
5
ones Step 2
5 36 tens
5
ones
ones
tens tens
tens tens tens hundred
hundred
tens
tens
tens
ones
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Multiply.
10.
6 7
4
11.
6 8
3
12.
7 4
5
13.
4 9
2
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Date:
Fill in the missing numbers.
Step 1
3
3
ones 9
Step 2
3
6
tens 18
Step 3
1
3 263 7
14.
1 7 2
4
7
hundreds
6
6
hundreds
hundreds
hundreds
8
tens
9
ones
789
Step 1
4
ones ones
Step 2
4
tens tens
hundreds
tens
Step 3
4
hundred hundreds 4 172 136
tens
hundreds hundred 1
tens
8
hundred
2
3
ones
hundreds
hundreds
hundreds
hundreds
tens
ones
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Example
2 6 3
3
7 8 9
Chapter 7 Lesson 7.3
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15.
Date:
2 3 1
4
Step 1
4
one ones
Step 2
4
tens tens
Step 3
4
hundred
hundreds hundred 4 231 hundreds
tens
hundreds
hundreds
hundreds
tens
ones
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16.
1 4 1
5
Step 1
5
one ones
Step 2
5
tens tens
hundreds
tens
Step 3
5
hundred hundreds 5 141 hundreds
hundreds
hundreds
hundreds
tens
ones
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17.
Date:
2 4 6
3
Step 1
3
ones Step 2
ten
3
ones
ones
tens ten Step 3
tens hundred
3
hundred 3 246 tens
tens
hundreds tens
hundreds
hundreds
hundreds
hundreds
tens
ones
Multiply.
18.
4 9 4
2
19.
3 7 3
3
20.
2 6 2
4
21.
1 5 4
3
22.
4 4 8
2
23.
2 2 9
4
138
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Chapter 7 Lesson 7.3
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Date:
Solve.
Example
A bird has 2 legs. How many legs do 126 birds have in all?
126 ⫻ 2 ⫽ 252
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126 birds have 252 legs in all.
24.
Fauzi has 4 books. Each book has 228 pages. How many pages are
there in all?
25.
There are 247 cars in a parking garage. How many wheels are there in
the parking garage?
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26.
A tailor sews 2 blouses a day. How many blouses can she sew in a year?
A year has 365 days.
27.
A box contains 120 paperclips. How many paperclips are there in
8 such boxes?
140
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Name:
Chapter 7 Lesson 7.3
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