We included **HMH Into Math Grade 2 Answer Key PDF** **Module 17 Lesson 5 Regrouping with Zeros** to make students experts in learning maths.

## HMH Into Math Grade 2 Module 17 Lesson 5 Answer Key Regrouping with Zeros

I Can solve three-digit subtraction problems when there are zeros in the number I start with.

**Step It Out**

Question 1.

On a farm, there are 800 stalks of corn. There are 595 bean plants. How many more stalks of corn than bean plants are on the farm?

A. Write the number of bean plants to represent the problem.

Answer:

B. Draw to show the number you subtract from.

Answer:

C. Look at the number you are subtracting. Decide if you need to regroup.

Answer:

Yes, we need to regroup in tens place.

D. Draw to show your regrouping.

Now there are _________ hundreds ________ tens _________ ones.

Answer:

2 hundreds 0 tens 5 ones.

E. You have done the regrouping. Now there are 7 hundreds 9 tens 10 ones.

Record this regrouping.

Answer:

F. Subtract to solve.

Answer:

G. There are _______ more stalks of corn.

Answer:

There are 205 more stalks of corn.

**Turn and Talk** How does recording your regrouping help you solve a subtraction problem?

Answer:

By regrouping records we know how much we have to subtract

**Check Understanding**

Question 1.

A new brick wall is built with 604 bricks. There are 327 light red bricks in the wall. The rest are dark red bricks. How many bricks are dark red? Solve.

_________ bricks are dark red.

Answer:

Explanation:

A new brick wall is built with 604 bricks.

There are 327 light red bricks in the wall.

604 – 327 = 277

277 bricks are dark red.

**On Your Own**

Question 2.

Use Structure Hannah jumps rope 300 times. Sharon jumps rope 179 times. How many more times does Hannah jump rope than Sharon? Solve.

Hannah jumps rope _________ more times than Sharon.

Answer:

Explanation:

Hannah jumps rope 300 times.

Sharon jumps rope 179 times.

300 – 179 = 121

Hannah jumps rope 121 more times than Sharon.

Question 3.

**Open Ended** Write a three-digit subtraction problem that includes subtracting from a number with a zero in the tens or ones place. Draw a visual model to show how you solved the problem.

Answer:

Explanation:

8 is greater than 0 so you must regroup:

Take 1 from 6, so 6 becomes 5.

Add 10 to 0, so 0 becomes 10.

Take 1 from 10, so 10 becomes 9.

Add 10 to 0, so 0 becomes 10.

**Subtract**

Question 4.

Answer:

Explanation:

8 is greater than 4 so you must regroup:

Take 1 from 9, so 9 becomes 8.

Add 10 to 0, so 0 becomes 10.

Take 1 from 10, so 10 becomes 9.

Add 10 to 4, so 4 becomes 14.

Question 5.

Answer:

Explanation:

4 is greater than 0 so you must regroup:

Take 1 from 1, so 1 becomes 0.

Add 10 to 0, so 0 becomes 10.

10 – 4 = 6

10 – 2 = 8

4 – 1 = 1

**On Your Own**

Question 6.

Ms. Kelli has 400 flowers in her field. Then she picks 247 flowers to sell at the flower market. How many flowers are in the field now? Use tools or draw to represent and solve this problem.

_________ flowers

Explain how you solved the problem.

Answer:

Explanation:

Ms. Kelli has 400 flowers in her field.

Then she picks 247 flowers to sell at the flower market.

400 – 247 = 153

153 flowers are in the field now.

Question 7.

**Open Ended** Write a three-digit subtraction problem that includes subtracting from a number with a zero in two places. Draw a visual model to show how you solved the problem.

Answer:

Explanation:

6 is greater than 0 so you must regroup:

Take 1 from 7, so 7 becomes 6.

Add 10 to 0, so 0 becomes 10.

10 – 6 = 4

9 – 5 = 4

6 – 2 = 4

**Subtract.**

Question 8.

Answer:

Explanation:

6 is greater than 0 so you must regroup:

Take 1 from 4, so 4 becomes 3.

Add 10 to 0, so 0 becomes 10.

10 – 6 = 4

9 – 5 = 4

3 – 2 = 1

Question 9.

Answer:

Explanation:

4 is greater than 0 so you must regroup:

Take 1 from 8, so 8 becomes 7.

Add 10 to 0, so 0 becomes 10.

9 – 7 = 2

10 – 4 = 6

7 – 3 = 4

Question 10.

Answer:

Explanation:

8 is greater than 0 so you must regroup:

Take 1 from 4, so 4 becomes 3.

Add 10 to 0, so 0 becomes 10.

10 – 8 = 2

13 – 6 = 7

4 – 2 = 2