All the solutions provided inÂ **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 4 Lesson 7 Fact Families **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 4 Lesson 7 Fact Families

**Explore and Explain**

**Teacher Directions:** Use to model. There are 7 fish swimming together in a group. 3 more fish join them. Draw a picture to show the story. Write the missing numbers to show the fact family.?

Answer:

Explanation:

I used to model

There are 7 fish swimming together in a group

3 more fish join them

I drew picture to show the story

I wrote the missing numbers to show the fact family.

**See and Show**

Related facts make a fact family.

**Helpful Hint**

5, 6, and 11 are a fact family.

**Add and subtract. Complete the fact family.**

Question 1.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

2, 7 and 9 make a fact family.

Question 2.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

5, 8 and 13 make a fact family.

Question 3.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

6, 8 and 14 make a fact family.

**Talk Math**

What fact family can you make with the numbers 4, 9, and 13?

In a fact family all facts have the same numbers.

Explanation:

I wrote the above fact family for the numbers 4, 9 and 13

All the fact family will have the same numbers.

**On My Own**

**Add and subtract.**

**Complete the fact family.**

Question 4.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

3, 9 and 12 make a fact family.

Question 5.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

3, 5 and 8 make a fact family.

Question 6.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

6, 9 and 15 make a fact family.

Question 7.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

2, 8 and 10 make a fact family.

**Problem Solving**

Question 8.

Joe finds 12 starfish at the beach. He gives 5 to his grandmother. How many starfish does he have left?

____ starfish

Answer:

Explanation:

Joe finds 12 starfish at the beach

He gives 5 to his grandmother

Subtract to find

12 – 5 = 7

So, Joe has 7 starfish left.

Question 9.

There are 16 turtles in the ocean. 7 of those turtles get out. How many turtles are still in the ocean?

____ turtles

Answer:

Explanation:

There are 16 turtles in the ocean

7 of those turtles get out

Subtract to find

16 – 7 = 9

So, 9 turtles are still in the ocean.

**HOT Problem** When I am subtracted from 17, the difference is 9. What number am I? Explain.

________________________

________________________

________________________

________________________

Answer:

When I am subtracted from 17, the difference is 9

Subtract to find the missing number

17 – 9 = 8

So, the missing number is 8

Therefore, 17 – 8 = 9.

### McGraw Hill My Math Grade 1 Chapter 4 Lesson 7 My Homework Answer Key

**Practice**

**Add and subtract. Complete the fact family.**

Question 1.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

1, 9 and 10 make a fact family.

Question 2.

Answer:

Explanation:

Related facts make a fact family

I added the given sums and subtracted to complete the fact family

6, 9 and 15 make a fact family.

**Complete the fact family.**

Question 3.

Pedro sees 5 flamingos in the water. He sees 4 flamingos on the grass. How many flamingos did he see in all?

Answer:

Explanation:

Pedro sees 5 flamingos in the water

He sees 4 flamingos on the grass

Add to find the sum

5 + 4 = 9

So, Pedro sees 9 flamingos in all

I also wrote the fact family of the numbers 5, 4 and 9.

Question 4.

Hailey saw 9 crabs on the beach in the morning. She saw 8 more crabs in the afternoon. How many crabs did Hailey see in all?

Answer:

Explanation:

Hailey saw 9 crabs on the beach in the morning

She saw 8 more crabs in the afternoon

Add to find the sum

9 + 8 = 17

So, Hailey sees 17 crabs in all

I also wrote the fact family of the numbers 8, 9 and 17.

**Vocabulary Check**

Question 5.

Circle the fact family.

2 + 3 = 5 4 – 2 = 2 7 + 8 = 15 15 – 8 = 7

3 + 1 = 4 5 – 1 = 4 8 + 7 = 15 15 – 7 = 8

Answer:

Explanation:

Related facts make a fact family

All the fact family will have the same numbers

So, I drew a circle around the fact family.

**Math at Home** Challenge your child to write all of the fact families that make 15.

Answer: