We included HMH Into Math Grade 2 Answer Key PDF Module 17 Three-Digit Subtraction to make students experts in learning maths.

## HMH Into Math Grade 2 Module 17 Answer Key Three-Digit Subtraction

Which One Is it?

Circle the visual model that represents the subtraction 43 – 18.

What is the difference?
43 – 18 = ____________

Explanation:
The difference of 43 and 18 is 25
We cannot subtract 8 from 3 so, regrouped the 3 as 13
13 – 8 = 5
4 tens becomes the 3 tens
3 tens  – 1 ten = 2 tens.

Turn and Talk

When you regroup 1 ten in subtraction, what happens to the number of ones?
1 ten = 10 ones
When we cannot subtract the number we regroup it.

Complete these problems to review prior concepts and skills you will need for this module.

Represent Subtracting Tens

Use . Find the difference.

Question 1.

3 tens – 1 ten = _________ tens
30 – 10 = __________
3 tens – 1 ten = 2 tens
30 – 10 = 20
Explanation:
1 stick of cube represents as 10 cubes
3 x 10 = 30
from that 10 are crossed out.
30 – 10 = 20

Hundreds, Tens, and Ones

Write how many hundreds, tens, and ones. Write the number.

Question 2.

__________ hundreds __________tens __________ ones __________
1 hundreds 7 tens 3 ones
Explanation:
173
The above blocks shows 173
A complete square is 100 and a stick is 10 and the dot represent as 1

Represent Subtraction with Two-Digit and One-Digit Numbers

Use to subtract. Write how many tens and ones. Write the difference.

Question 3.
Subtract 6 from 53.

__________ tens __________ ones __________