SDAP 2.2
Solve problems involving simple number patterns.
UNDERLYING SKILLS AND CONCEPTS:
multiplication;
division
word problems
Solve Problems
a
K
ey Ide
When you solve problems, use the 4-step ProblemSolving Plan. When you get to Step 3, try looking for a
pattern or drawing a picture to solve.
E x am p l E
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Charlene has 8 pages in her album.
She has 5 pictures on each page.
How many pictures does she have in all?
1. What do you need to
find out?
How many pictures Charlene has.
2. What information can
you use to answer the
question?
Her album has 8 pages. Each page has
5 pictures.
3. How can you solve
the problem?
Make a table and look for a pattern.
Pages
Pictures
1 2 3 4 5 6 7 8
5 10 15 20 25 30 35 40
The pattern is add 5.
She has 40 pictures.
4. How can you check
your answer?
Chapter 18 – Lesson 4
Since the pattern is add 5, you can skip
count by 5s to check.
5, 10, 15, 20, 25, 30, 35, 40
page 213
Name
P RAC T I C E
Solve each problem.
Mr. Adamson bought 3
packages of cards. Each
package has 10 cards in it.
How many cards did he buy?
2
There are 2 pens in a pack.
There are 10 pens. How
many packs of pens are
there?
30 cards
3
There are 8 buns in a
package. There are 24 buns
in all. How many packages
are there?
5
4
There are 4 markers in a
box. There are 6 boxes of
markers. How many markers
are there in all?
3 packages
5
3 notebooks cost $1. How
much do 9 notebooks cost?
$3
Math
Reasoning
7
Solve Problems
packs
24 markers
6
2 pencils cost 10¢. How
much do 8 pencils cost?
40
¢
MR 1.1
What is another way to solve these problems besides looking for
a pattern? Use one of the problems to explain.
Answers will vary.
page 214
Chapter 18 – Lesson 4
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1
Name
P RAC T I C E
Solve each problem.
Mrs. Adams bought 4
packages of cards. Each
package has 10 cards in it.
How many cards did she buy?
2
3 packs
40 cards
4
3
There are 6 buns in a
package. There are 24 buns
in all. How many packages
are there?
6
2 notebooks cost $1. How
much do 7 notebooks cost?
There are 3 markers in a
box. There are 7 boxes of
markers. How many markers
are there in all?
21 markers
4 packages
5
There are 3 pens in a pack.
There are 9 pens. How many
packs of pens are there?
3 pencils cost 15¢. How
much do 9 pencils cost?
45¢
$3.50
Math
Reasoning
7
Solve Problems
MR 1.1
Show how to solve one of these problems by drawing a picture.
Answers will vary.
page 144
Home Resource and Homework
Chapter 18 Lesson 4
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1
MCX94TEG2Ch01_30.v9.4.1 2/19/01 19:50 Page 393
Name
P RAC T I C E
Solve each problem.
1
Mr. Adamson bought 3
packages of cards. Each
package has 10 cards in it.
How many cards did he buy?
2
There are 2 pens in a pack.
There are 10 pens. How
many packs of pens are
there?
30 cards
3
5 packs
There are 8 buns in a
package. There are 24 buns
in all. How many packages
are there?
4
There are 4 markers in a
box. There are 6 boxes of
markers. How many markers
are there in all?
3 packages
B – © CSL Associates, Inc. All rights reserved.
5
3 notebooks cost $1. How
much do 9 notebooks cost?
24 markers
6
2 pencils cost 10¢. How
much do 8 pencils cost?
$3
Math
Reasoning
7
40¢
Solve Problems
MR 1.1
What is another way to solve these problems besides looking for
a pattern? Use one of the problems to explain.
Answers will vary.
Chapter 18 – Lesson 4
Student Book Page
page 214
Name
P RAC T I C E
Solve each problem.
Mrs. Adams bought 4
packages of cards. Each
package has 10 cards in it.
How many cards did she buy?
2
3 packs
40 cards
4
3
There are 6 buns in a
package. There are 24 buns
in all. How many packages
are there?
6
2 notebooks cost $1. How
much do 7 notebooks cost?
There are 3 markers in a
box. There are 7 boxes of
markers. How many markers
are there in all?
21 markers
4 packages
5
There are 3 pens in a pack.
There are 9 pens. How many
packs of pens are there?
3 pencils cost 15¢. How
much do 9 pencils cost?
45¢
$3.50
Math
Reasoning
7
Solve Problems
MR 1.1
Show how to solve one of these problems by drawing a picture.
Answers will vary.
page 144
Home Resource and Homework
Chapter 18 Lesson 4
B – © CSL Associates, Inc. All rights reserved.
1