Fact Families

Is this a fact family?

100

Is this a fact family? 

4, 3, 9

No, it isn't. 4+3=7 not 9

How could you make it a fact family?

200

Is this a fact family?

2, 8, 5

No, it isn't. 2+5=7 not 8

How could you make it a fact family?

300

Is this a fact family?

4, 3, 1

Yes it is.

3+1=4 and 1+3=4 

4-3=1 and 4-1=3

400

Is this a fact family?

10, 4, 6

Yes, it is. 

4+6=10 and 6+4=10

10-6=4 and 10-4=6

500

Is this a fact family? 

12, 9, 4

No, it isn't 9+4=13 not 12.

How could you make it a fact family? BONUS

Inverse fact family

100

Write another equation in this fact family.

1+7=8

7+1 = 8

8-7 = 1 

8-1 = 7

200

Write another equation in this fact family.

5+4=9

4+9 = 5

9-4 = 5

9-5 = 4

300

Write another equation in this fact family.

10-3=7

10 - 7 = 3

7+3 = 10

3+7 = 10

400

Write another equation in this fact family.

14-3=11

14 - 11 = 3

11+3 = 14

3+11 = 14

500

Write another equation in this fact family.

15-9=6

15 - 6 = 9

9+6 = 15

6+9 = 15

If...Then Fact Families

100

If 3+2=5, then 5-3=

2

200

If 6+4=10, then 10-4=

6

300

If 12-2=10, then 2+10=

12

400

If 16-3=13, then 3+13=

16

500

If 21-7=14, then 7+14=

21

Missing equation

100

What is the missing fact family?

5 + 3 = 8
3 + 5 = 8
8 - 5 = 3

8 - 3 = 5

200

What is the missing fact family?

2 + 7 = 9
9 - 7 = 2
9 - 2 = 7

7 + 2 = 9

300

What is the missing fact family?

7 + 4 = 11
11 - 4 = 7
11 - 7 = 4

4 + 7 = 11

400

What is the missing fact family?

6 + 6 = 12
6 + 6 = 12
12 - 6 = 6

12 - 6 = 6

500

What is the missing fact family?

9 + 16 = 25
16 + 9 = 25
25 - 9 = 16

25 - 16 = 9