Week 5ThursdayFact Families
1What is a Fact Family?

Fact Families

3, 7, 10 make a family:

3 + 7 = 10 | 7 + 3 = 10 | 10 − 3 = 7 | 10 − 7 = 3

2Complete Fact Families

Complete each fact family.

4
6
10

4 + 6 =

6 + 4 =

10 - 4 =

10 - 6 =

5
5
10

5 + 5 =

5 + 5 =

10 - 5 =

10 - 5 =

3
8
11

3 + 8 =

8 + 3 =

11 - 3 =

11 - 8 =

3Related Subtraction Facts

Write the related subtraction fact.

5 + 6 = 11

11 − 5 =

11 − 6 =

7 + 8 = 15

15 − 7 =

15 − 8 =

4 + 9 = 13

13 − 4 =

13 − 9 =

4Find the Missing Number

Find the Missing Number in Each Family

, 7, 12 (7 + 5 = 12, 12 − 7 = 5)

6, , 15 (6 + 9 = 15, 15 − 6 = 9)

8, 4, (8 + 4 = 12, 12 − 8 = 4)

5Challenge: Create Your Own

Create Your Own Fact Family

Pick three numbers that make a fact family: , ,

Write all four facts:

1.

2.

3.

4.