We included **HMH Into Math Grade 2 Answer Key PDF** **Module 11 Addition and Subtraction Grouping Strategies **to make students experts in learning maths.

## HMH Into Math Grade 2 Module 11 Answer Key Addition and Subtraction Grouping Strategies

**Decisions, Decisions**

Viola needs 16 crayons. Which two boxes of crayons should she buy? Write equations to show two ways to make 16 crayons.

Draw or write to explain how you solved the problem.

____9_____ crayons + ____7_____ crayons = 16 crayons

____8_____ crayons + _____8____ crayons = 16 crayons

Answer:

9 crayons + 7 crayons = 16 crayons,

8 crayons + 8 crayons = 16 crayons,

Explanation:

Given Viola needs 16 crayons.

Two boxes of crayons should she buy so

equations to show two ways to make 16 crayons,

First if we take 9 crayons box

we need 16 – 9 = 7 crayon box and

if we take 8 crayons we need

16-8 = 8 crayon box so the equations are

9 crayons + 7 crayons = 16 crayons,

8 crayons + 8 crayons = 16 crayons.

**Turn and Talk**

Explain why 7 + 5 = 12 and 5 + 7 = 12 are related addition facts.

What are the related subtraction facts?

Answer:

Addition facts is 7 + 5 = 12 and 5 + 7 = 12,

Subtraction facts are 12 – 7 = 5 and 12 – 5 = 7,

Explanation:

“Fact Family is a collection of related addition and

subtraction facts, or made from the same numbers or

group of math facts or equations created using the

same set of numbers . Addition facts is 7 + 5 = 12 and

5 + 7 = 12, Subtraction facts are 12 – 7 = 5 and 12 – 5 = 7.

**Are You Ready?**

Complete these problems to review prior concepts and

skills you will need for this module.

**Represent Adding Tens**

Draw to show the problem. Solve.

Question 1.

Shanna has 30 animal stickers. She has 20 flower stickers.

How many stickers does Shanna have?

_____50_____ stickers

Answer:

50 stickers,

Explanation:

Given Shanna has 30 animal stickers. She has 20 flower stickers.

So number of stickers does Shanna have are adding

30 + 20 = 50 stickers.

**Represent Subtracting Tens**

Draw to show the problem. Solve.

Question 2.

Matt has 60 buttons. He gives 20 buttons to a friend.

How many buttons does he have now?

____40_____ buttons

Answer:

40 buttons,

Explanation:

Given Matt has 60 buttons. He gives 20 buttons to a friend.

So many buttons does he have now are by substarcting

60 – 20 = 40 buttons.

**Tens and Ones**

Question 3.

Write the number. Then write the number of tens and ones.

__56_____ = ____5____ tens ____6____ ones

Answer:

Number is 56, 5 tens and 6 ones,

Explanation:

If we count there are 5 tens and 6 ones so

the number is 56.