All the solutions provided inÂ **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 1 Lesson 5 Vertical Addition **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 1 Lesson 5 Vertical Addition

**Explore and Explain**

**Teacher Directions:** Use to model. Show 2 + 1 on each sign. Trace the counters. Write the addition number sentences.

Explanation:

2 + 1 = 3

a mathematical expression that shows two or more values added together and their sum

**See and Show**

You can add across. You can add down. The sum is the same if the numbers added are the same.

**Write the numbers. Add.**

Question 1.

Answer:

Explanation:

The sum of 4 and 1 is 5

4 + 1 = 5

Question 2.

_____ + _____ = _____

Answer:

3 + 3 = 6

Explanation:

The sum of 3 and 3 is 6

3 + 3 = 6

Question 3.

_____ + _____ = _____

Answer:

4 + 3 = 7

Explanation:

The sum of 4 and 3 is 7

4 + 3 = 7

Question 4.

Answer:

Explanation:

The sum of 4 and 4 is 8

4 + 4 = 8

**Talk Math** You know that 5 + 3 = 8. If you add down, what is the sum? Explain.

**On My Own**

**Write the numbers. Add.**

Question 5.

Answer:

Explanation:

The sum of 6 and 2 is 8

6 + 2 = 8

Question 6.

____ + ____ = _____

Answer:

4 + 5 = 9

Explanation:

The sum of 4 and 5 is 9

4 + 5 = 9

Question 7.

____ + ____ = _____

Answer:

5 + 2 = 7

Explanation:

The sum of 5 and 2 is 7

5 + 2 = 7

Question 8.

Answer:

Explanation:

The sum of 5 and 1 is 6

5 + 1 = 6

Question 9.

____ + ____ = _____

Answer:

2 + 7 = 9

Explanation:

The sum of 2 and 7 is 9

2 + 7 = 9

Question 10.

Answer:

Explanation:

The sum of 1 and 7 is 8

1 + 7 = 8

**Add.**

Question 11.

2 + 6 = ____

Answer:

8

Explanation:

The sum of 2 and 6 is 8

2 + 6 = 8

Question 12.

Answer:

Explanation:

The sum of

Question 13.

1 + 3 = ____

Answer:

4

Explanation:

The sum of 1 and 3 is 4

1 + 3 = 4

**Problem Solving**

Question 14.

Brian saw 5 foxes in a field. He saw 3 other foxes in the woods. How many foxes did Brian see in all?

Answer:

Explanation:

Brian saw 5 foxes in a field.

He saw 3 other foxes in the woods.

5 + 3 = 8

Brian see 8 foxes in all

Question 15.

Nate found 3bugs. Pablo found 2 bugs. How many bugs did they find in all?

Answer:

Explanation:

Nate found 3 bugs.

Pablo found 2 bugs.

3 + 2 = 5

5 bugs that they find in all

**Write Math** How is adding down different from adding across? Explain.

_________________

_________________

_________________

_________________

Explanation:

Adding down and adding across are same

both gives the same sum

### McGraw Hill My Math Grade 1 Chapter 1 Lesson 5 My Homework Answer Key

**Practice**

**Write the numbers. Add.**

Question 1.

____ + ____ = ____

Answer:

5 + 1 = 6

Explanation:

The sum of 5 and 1 is 6

5 + 1 = 6

Question 2.

Answer:

Explanation:

The sum of 4 and 3 is 7

4 + 3 = 7

Add.

Question 3.

2 + 6 = ____

Answer:

8

Explanation:

The sum of 2 and 6 is 8

2 + 6 = 8

Question 4.

2 + 2 = ____

Answer:

4

Explanation:

The sum of 2 and 2 is 4

2 + 2 = 4

Question 5.

1 + 4 = ____

Answer:

5

Explanation:

The sum of 1 and 4 is 5

1 + 4 = 5

**Add.**

Question 6.

Answer:

Explanation:

The sum of 2 and 7 is 9

2 + 7 = 9

Question 7.

2 + 3 = ____

Answer:

5

Explanation:

The sum of 2 and 3 is 5

2 + 3 = 5

Question 8.

Answer:

Explanation:

The sum of 1 and 6 is 7

1 + 6 = 7

Question 9.

There are 2 birds in a nest. 2 more birds fly to the nest. How many birds are there in all?

Answer:

Explanation:

There are 2 birds in a nest.

2 more birds fly to the nest.

2 + 2 = 4

Question 10.

There are 5 children hiking. Then 3 more children join them. How many children are hiking in all?

Answer:

Explanation:

The sum of 5 and 3 is 8

5 + 3 = 8

**Test Practice**

Question 11.

Answer:

Explanation:

The sum of 4 and 5 is 9

4 + 5 = 9

**Math at Home** Give your child an addition number sentence. Have your child show how to add across and down.