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.?
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: