All the solutions provided in **McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 1 Take Apart Tens to Add** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 3 Lesson 1 Take Apart Tens to Add

**Explore and Explain**

**Teacher Directions:** Use base-ten blocks. Show 48 in the red box. Show 16 in the yellow box. Move some base-ten blocks from the yellow box to the red box to make 50. Write the number shown in each box. Write the number sentence.

Explanation:

**See and Show**

Numbers that end in zero are easier to add. Take apart addends to make numbers that end in zero.

Find 28 + 36.

One Way:

Take apart 36 as 2 + 34.

Then make 28 + 2 into 30.

Another way:

Take apart 28 as 24 + 4.

Then make 4 + 36 into 40.

So, 28 + 36 = __64__

**Take apart an addend to solve**.

Question 1.

Answer: 53

Explanation:

The Sum of 18 and 35 is 53

Question 2.

Answer:

Explanation:

The Sum of 44 and 26 is 70

**Talk Math**

How do you decide which addend to take apart when adding?

**On My Own**

**Take apart an addend to solve.**

Question 3.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

Question 4.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

Question 5.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

Question 6.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

**Problem Solving**

Question 7.

28 people came to the bake sale in the morning. 34 people came to the bake sale in the afternoon. How many people came to the bake sale?

____ people

Answer:

62 people

Explanation:

28 people came to the bake sale in the morning.

34 people came to the bake sale in the afternoon.

28 + 34 = 62

62 people came to the bake sale

Question 8.

Bill collected 16 toys for the toy drive. Lisa collected 37 toys. How many toys did Bill and Lisa collect in all?

____ toys

Answer:

53 toys

Explanation:

Bill collected 16 toys for the toy drive.

Lisa collected 37 toys.

37 + 16 = 53

53 toys that Bill and Lisa collect in all

**Write Math**

Explain how you would find 65 + 18 by taking apart an addend.

Explanation:

65 + 18

can also written as 63 + 2 + 18

63 + 2 + 18

63 + 20 = 83

### McGraw Hill My Math Grade 2 Chapter 3 Lesson 1 My Homework Answer Key

**Practice**

**Take apart an addend to solve.**

Question 1.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

Question 2.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

**Take apart an addend to solve.**

Question 3.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

Question 4.

Answer:

Explanation:

The places of the addends may change but the sum will not change.

Question 5.

There were 38 winter hats and 36 scarves donated to a clothing drive. How many hats and scarves were donated in all?

Answer:

74 hats and scarves were donated in all

Explanation:

There were 38 winter hats and 36 scarves donated to a clothing drive.

38 + 36 = 74

**Test Practice**

Question 6.

How could you take apart 18 + 36 to find the sum?

18 + 36 = _____

(A) 9 + 9 + 36

(B) 18 + 2 + 34

(C) 1 + 8 + 36

(D) 18 + 3 + 6

Answer:

B

Explanation:

18 + 2 + 34

18 + 2 = 20

20 + 34 = 54

18 + 36 = 54

**Math at Home** Ask your child to solve 49 + 13 by taking apart an addend.

Explanation:

49 + 13 can also written as 49 + 1 + 12

49 + 1 = 50

50 + 12 = 62