# Into Math Grade 1 Module 13 Lesson 3 Answer Key Understand and Explain Place Value Subtraction

We included HMH Into Math Grade 1 Answer Key PDF Module 13 Lesson 3 Understand and Explain Place Value Subtraction to make students experts in learning maths.

## HMH Into Math Grade 1 Module 13 Lesson 3 Answer Key Understand and Explain Place Value Subtraction

I Can use place value to subtract tens.

How can you represent tens to solve the problem?

Equation: ___________
Zia has _________ acorns now.
Read the following: Zia has 50 acorns. She gives 20 to Nate. How many acorns does Zia have now? Allow children to choose tools. Have children draw to show what they did and write an equation to solve.

Explanation:
Zia has 50 acorns
She gives 20 to Nate
I drew 5 tens and took away 2 tens
3 tens are left
50 – 20 = 30
So, Zia has 30 acorns now.

Build Understanding

Hallie picks 90 apples. She gives away 40 apples. How many apples does she have now?

Use tools to solve the problem. How can you use tens and ones to show your work?

Hallie has ________ apples now.

Explanation:
Hallie picks 90 apples
She gives away 40 apples
I drew 9 tens and took away 4 tens
4 tens are left
90 – 40 = 50
So, Hallie has 50 apples now.

Turn and Talk How can you use tens and ones to solve a subtraction problem? Explain the steps you used to subtract 90 – 40.

Step It Out

Question 1.
Use tens and ones to subtract.

A. Draw to show 50.
THINK: 5 tens 0 ones

B. Subtract 20.
THINK: Take 2 tens away.

C. Subtract the tens and ones.

D. Solve.

Explanation:
The numbers are 50 and 20
I drew 5 tens and took away 2 tens
3 tens are left
50 – 20 = 30
So, i used tens to subtract 20 from 50.

Check Understanding

Use tens to subtract.

Question 1.

Explanation:
I drew 5 tens and took away 3 tens
2 tens are left
50 – 30 = 20

Reason Use tens to subtract.

Question 2.
There are 40 children in the gym. There are 30 children in the library. How many more children are in the gym than in the library?

There are ________ more children in the gym than in the library.

Explanation:
There are 40 children in the gym
There are 30 children in the library
I drew 4 tens and took away 3 tens
3 tens are left
40 – 30 = 10
So, there are 10 more children in the gym than in the library.

Question 3.
There are 60 children on a school bus. Then 10 children get off the school bus. How can you find how many children are still on the school bus? Explain your reasoning.

Explanation:
There are 60 children on a school bus
Then 10 children get off the school bus
I drew 6 tens and took away 1 tens
5 tens are left
60 – 10 = 50
So, there are 50 children left in the bus.

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