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

All the solutions provided in 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.? 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.

5, 6, and 11 are a fact family. Add and subtract. Complete the fact family.

Question 1.  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.  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.  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

Complete the fact family.

Question 4.  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.  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.  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.  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 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 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.  ________________________
________________________
________________________
________________________
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.  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.  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?  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?  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 