&&66
8VHPXOWLSOLFDWLRQDQGGLYLVLRQZLWKLQWRVROYHZRUGSUREOHPVLQ
NS 3.2*2$
Use repeated
subtraction, equal sharing, and forming equal
VLWXDWLRQVLQYROYLQJHTXDOJURXSVDUUD\VDQGPHDVXUHPHQWTXDQWLWLHVHJE\XVLQJ
groups with remainders to do division.
GUDZLQJVDQGHTXDWLRQVZLWKDV\PEROIRUWKHXQNQRZQQXPEHUWRUHSUHVHQWWKHSUREOHP
UNDERLYING SKILLS AND CONCEPTS:
division concepts;
equal groups;
subtract 1-digit numbers
Divide by Repeated Subtraction
You can subtract equal groups to divide.
a
K
ey Ide
E x am p l E
There are 12 students.
Four students make a team.
How many teams can there be?
You can take away groups of 4 students.
B – © CSL Associates, Inc. All rights reserved.
Then count the number of groups you made.
12
! 4
Team 1
Team 1
8
! 4
Team 2
Team 2
4
! 4
Team 3
Team 3
0
There can be 3 teams of 4 students.
Chapter 17 – Lesson 3
page 199
Name
P RAC T I C E
Solve. Show how you decided.
1
Rotemi has 14 baseball cards.
How many groups of 2 cards can
he make?
7
2
Carla has 16 cookies.
She has 4 plates.
How many cookies go on each plate?
4
3
Tom has 9 brads.
He needs 3 brads for each book.
How many books can he make?
4
Mr. Lee has 18 eggs.
Six eggs go in each carton.
How many cartons can he fill?
3
Math
Reasoning
Number Patterns
MR 2.2
Find the pattern. Tell what number is missing.
5
18
27
36
54
The pattern is add 9.
The missing number is 45.
page 200
Chapter 17 – Lesson 3
B – © CSL Associates, Inc. All rights reserved.
3
Name
P RAC T I C E
Solve. Show how you decided.
1
Josh has 12 baseball cards.
How many groups of 2 cards can
he make?
6
2
Rita has 15 cookies.
She has 3 boxes.
How many cookies go in each box?
5
3
Bob has 10 brads.
He needs 2 brads for each report.
How many reports can he make?
4
Mr. Lewis has 24 candles.
Six candles go on each cake.
How many cakes can he make?
4
Math
Reasoning
Number Patterns
MR 2.2
Find the pattern. Tell what number is missing.
5
16
20
24
32
The pattern is add 4.
The missing number is 28.
page 134
Home Resource and Homework
Chapter 17 Lesson 3
B – © CSL Associates, Inc. All rights reserved.
5
MCX94TEG2Ch01_30.v9.4.1 2/19/01 19:50 Page 367
Name
P RAC T I C E
Solve. Show how you decided.
1
Rotemi has 14 baseball cards.
How many groups of 2 cards can
he make?
7
2
Carla has 16 cookies.
She has 4 plates.
How many cookies go on each plate?
4
3
Tom has 9 brads.
He needs 3 brads for each book.
How many books can he make?
B – © CSL Associates, Inc. All rights reserved.
3
4
Mr. Lee has 18 eggs.
Six eggs go in each carton.
How many cartons can he fill?
3
Math
Reasoning
Number Patterns
MR 2.2
Find the pattern. Tell what number is missing.
5
18
27
36
45
54
The pattern is add 9.
The missing number is 45.
Chapter 17 – Lesson 3
Student Book Page
page 200
Name
P RAC T I C E
Solve. Show how you decided.
1
Josh has 12 baseball cards.
How many groups of 2 cards can
he make?
6
2
Rita has 15 cookies.
She has 3 boxes.
How many cookies go in each box?
5
3
Bob has 10 brads.
He needs 2 brads for each report.
How many reports can he make?
4
Mr. Lewis has 24 candles.
Six candles go on each cake.
How many cakes can he make?
4
Math
Reasoning
Number Patterns
MR 2.2
Find the pattern. Tell what number is missing.
5
16
20
24
28
32
The pattern is add 4.
The missing number is 28.
page 134
Home Resource and Homework
Chapter 17 Lesson 3
B – © CSL Associates, Inc. All rights reserved.
5