Fact Families, Addition and Subtraction Partners
Use the same numbers to make addition and subtraction facts
Fact Families, Addition and Subtraction Partners
Use the same numbers to make addition and subtraction facts
Math - Grade K-1
- 1
Use the numbers 2, 3, and 5. Write two addition facts.
The two smaller numbers join together to make the bigger number.
The two addition facts are 2 + 3 = 5 and 3 + 2 = 5. - 2
Use the numbers 2, 3, and 5. Write two subtraction facts.
The two subtraction facts are 5 - 2 = 3 and 5 - 3 = 2. - 3
Fill in the missing number: 4 + 1 = __.
Start at 4 and count one more.
The missing number is 5 because 4 and 1 more make 5. - 4
Fill in the missing number: 5 - 1 = __.
The missing number is 4 because taking 1 away from 5 leaves 4. - 5
Use the fact 6 + 2 = 8. Write a subtraction fact with the same three numbers.
Start with the total, 8, when you write a subtraction fact.
One related subtraction fact is 8 - 6 = 2. Another correct answer is 8 - 2 = 6. - 6
Look at this fact family: 1 + 7 = 8, 7 + 1 = 8, 8 - 1 = 7, 8 - 7 = __. Fill in the missing number.
The missing number is 1 because 8 - 7 = 1. - 7
Use the numbers 3, 4, and 7. Write the whole fact family.
Write two addition facts and two subtraction facts.
The fact family is 3 + 4 = 7, 4 + 3 = 7, 7 - 3 = 4, and 7 - 4 = 3. - 8
Which three numbers make a fact family? Circle the set: 2, 5, 7 or 2, 5, 8.
Add the two smaller numbers. They should equal the biggest number.
The set 2, 5, 7 makes a fact family because 2 + 5 = 7. - 9
Fill in the missing number: __ + 2 = 6.
The missing number is 4 because 4 + 2 = 6. - 10
Fill in the missing number: 6 - __ = 2.
Think about the related addition fact: 4 + 2 = 6.
The missing number is 4 because 6 - 4 = 2. - 11
Use the numbers 0, 5, and 5. Write two addition facts.
The two addition facts are 0 + 5 = 5 and 5 + 0 = 5. - 12
Use the numbers 0, 5, and 5. Write two subtraction facts.
Subtracting zero keeps the number the same.
The two subtraction facts are 5 - 0 = 5 and 5 - 5 = 0. - 13
There are 3 ducks in a pond and 3 ducks on the grass. There are 6 ducks in all. Write one addition fact and one subtraction fact.
One addition fact is 3 + 3 = 6. One subtraction fact is 6 - 3 = 3. - 14
Use the numbers 4, 5, and 9. Fill in the missing facts: 4 + 5 = 9, 5 + 4 = 9, 9 - 4 = __, 9 - 5 = __.
Subtraction facts use the same three numbers as the addition facts.
The missing facts are 9 - 4 = 5 and 9 - 5 = 4. - 15
Make a fact family with 1, 8, and 9. Write all four facts.
The fact family is 1 + 8 = 9, 8 + 1 = 9, 9 - 1 = 8, and 9 - 8 = 1.