Hannah brought $1 to buy ice cream at lunch. The ice cream only costs 65¢. How

much change did she get back?

In this lesson, you will learn how to make change in money word

problems by adding up on a number line.

Let’s Review

Number Line

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More

Less

Let’s Review

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39 6141 51

Let’s Review

Friendly NumbersFriendly numbers are easy to work with.

Let’s Review

10 +3 = 13

40 + 8 = 48

90 + 2 = 92

Core Lesson

Matt takes a $20 bill to the store. He decided to buy a board game for $7. After he gives the

cashier his money, how much change should he get back?

What are the clues?

What am I trying to

figure out?

?

Core Lesson

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Matt takes a $20 bill to the store. He decided to buy a board game for $7. After he gives the

cashier his money, how much change should he get back?

Where is the money that he

should get back?

Is there a faster way to count the

numbers?

Core Lesson

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Is there a faster way to count the

numbers?Add up to the next friendly number!

3 10

+ = 13

Matt got $13 back in change.

A Common Misunderstanding

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When we are making hops, we are counting the lines.

When we are making hops, we are counting the spaces between the lines.

3 10

13 spaces$13

Core Lesson

Hannah brought $1 to buy ice cream at lunch. The ice cream only costs 65¢. How much

change did she get back?

What are the clues?

What am I trying to

figure out?

?

Core Lesson

Hannah brought $1 to buy ice cream at lunch. The ice cream only costs 65¢. How much

change did she get back?

$1 = 100¢

65¢

Where should I put 100?

100¢

Core Lesson

65¢ 100¢70¢ 90¢80¢

Where is the change that she should get back?

What number should I hop to

first?

Hop to the next friendly number!

5

What is the next friendly

number?

10 10 10+ + + = 3535 spaces35¢

Hannah got 35¢ back in change.

In this lesson you have learned how to make change in money word problems by adding up

on a number line.