We included **HMH Into Math Grade 1 Answer Key PDF** **Module 13 Lesson 2 Understand and Explain Place Value Addition **to make students experts in learning maths.

## HMH Into Math Grade 1 Module 13 Lesson 2 Answer Key Understand and Explain Place Value Addition

I Can use place value to add two-digit numbers

**Spark Your Learning**

How can you represent tens and ones to solve the problem?

Joe and Maria have ___________ rocks.

Have children look at the table. Explain that the numbers show how many rocks each person has in their collection. Read the following: Joe and Maria put their rock collections together. How many rocks do they have? Allow children to choose tools to solve the problem. Have them draw to show their work.

Answer:

Explanation:

Joe has 21 number of rocks

Maria has 46 number of rocks

I drew a quick picture to show the sum of 21 and 46

21 + 46 = 67

Joe and Maria have 67 rocks.

**Build Understanding**

There are 12 children at the park. Then 26 more children come. How many children are at the park now?

Use tools to solve the problem.

There are __________ children at the park now.

Answer:

Explanation:

There are 12 children at the park

Then 26 more children come

I drew to show the numbers in tens and ones

The sum of 12 and 26 is 38

So, there are 38 children at the park now.

**Turn and Talk** Explain how to use tens and ones to add 14 + 26.

Answer:

14 = 1 ten 4 ones

26 = 2 tens 6 ones

14 + 26 = 3 tens 10 ones

1 ten = 10 ones

3 tens + 1 ten = 4 tens

So, 14 + 26 = 40.

**Step It Out**

Question 1.

Use tens and ones to add.

A. Draw tens and ones to show 46.

THINK: 4 tens 6 ones

Answer:

B. Draw tens and ones to show 28.

Answer:

C. Add the tens. Add the ones. Write the equation.

Answer:

D. Solve.

Answer:

Explanation:

I used tens and ones to add the numbers 46 and 28

I drew to show the numbers in tens and ones

46 + 28 = 74

So, the sum of 46 and 28 is 74.

**Check Understanding**

**Draw to show the numbers. Use tens and ones to add.**

Question 1.

Stuart has 34 stickers. He gets 42 more. How many stickers does he have now?

__________ stickers

Answer:

Explanation:

Stuart has 34 stickers

He gets 42 more

I drew to show the numbers as tens and ones

34 + 42 = 76

So, Stuart has 76 stickers in all.

**On Your Own**

**Draw to show the numbers. Use tens and ones to add.**

Question 2.

**Attend to Precision** Dani has 44 marbles. Hector has 31 marbles. How many marbles do they have?

__________ marbles

Answer:

Explanation:

Dani has 44 marbles

Hector has 31 marbles

I drew to show the numbers as tens and ones

44 + 31 = 75

So, they have 75 marbles all together.

Question 3.

Solve 28 + 26.

Answer:

Explanation:

I used tens and ones to add the numbers 28 and 26

I drew to show the numbers in tens and ones

So, 28 + 26 = 54.

**I’m in a Learning Mindset!**

What can I do to become a better learner?

Answer: