We included **HMH Into Math Grade 2 Answer Key PDF** **Module 17 Lesson 2 Represent Regrouping for Subtraction** to make students experts in learning maths.

## HMH Into Math Grade 2 Module 17 Lesson 2 Answer Key Represent Regrouping for Subtraction

I Can subtract a three-digit number with regrouping using a concrete model or a visual model.

**Spark Your Learning**

How many nails does Mrs. Orlov have now?

__________ nails

Mrs. Orlov buys 425 nails. She uses 350 nails in a project. How many nails does Mrs. Orlo, have now? Show how you con solve this problem.

Answer:

75 nails

Explanation:

Mrs. Orlov buys 425 nails.

She uses 350 nails in a project.

let n be the nails that Orlo have

n = 425 – 350

425 – 350 = 75

n = 75

75 nails that Mrs. Orlo, have now

**Build Understanding**

A scientist finds 318 bats in a cave. Then 176 bats fly away. How many bats stay in the cave?

A. Make a concrete model to show 318 bats. Draw a visual model to show your work.

Answer:

B. How con you subtract 176 from 318?

**THINK:** Do I need to regroup?

Show the subtraction in your visual model. Remember to show any regrouping.

Answer:

We have to regroup in tens place as we cannot subtract 7 from 1

1 becomes 11 after regrouping

11 – 7 = 4

C. Solve the problem.

___________ bats stay in the cave.

Answer:

142 bats stay in the cave.

Explanation:

We have to regroup in tens place as we cannot subtract 7 from 1

1 becomes 11 after regrouping

11 – 7 = 4

Hundreds are regrouped tens so, 3 hundreds become 2 hundred

2 – 1 = 1

**Turn and Talk** How is 1 hundred regrouped as 10 tens?

Answer:

1 hundred = 10 ones.

10 tens can be regrouped to make a hundred and 10 hundreds can be regrouped to make a thousand.

**Step It Out**

Question 1.

424 – 251 = _______

A. Draw a visual model to represent 424.

Answer:

B. Do you need to regroup to solve? Explain.

Answer:

Yes, we need to regroup in tens place.

C. Subtract to solve. Draw on your visual model to help you. Remember to record when you regroup.

Answer:

Explanation:

The difference of 424 – 251 = 173

We have to regroup in tens place.

we cannot subtract 5 from 2 so, regrouped 2 as 12

12 – 5 = 7

**Check Understanding**

Question 1.

There are 238 large marbles and 145 small marbles in a bag. How many more large marbles than small marbles are there? Make a concrete model or draw a visual model to solve.

Answer:

Explanation:

There are 238 large marbles

and there are 145 small marbles in a bag.

238 – 145 = 93

93 more large marbles are there than small marbles

**On Your Own**

Question 2.

Reason How many more points did the Tigers score than the Eagles? Make a concrete model or draw a visual model to solve.

The Tigers scored _________ more points than the Eagles.

Answer:

The Tigers scored 33 more points than the Eagles.

Explanation:

Points scored by the tigers = 125

Points scored by the Eagles = 92

The difference of 125 and 92 is 33

so, 33 more points than the Eagles.

Question 3.

**Open Ended** Complete this subtraction problem so that it will require regrouping 1 hundred as 10 tens. Then solve.

Answer:

Explanation:

The numbers choose are 833 and 252

we have to regroup in tens and hundreds place.

1 hundred = 10 ones 8 hundreds will change as 7 hundreds.

833 – 252 = 581

**I’m in a Learning Mindset!**

What did I learn in addition to regrouping hundreds in subtraction?

Answer:

regrouping is the process of making groups of tens,

when adding or subtracting two digit numbers