Study

Fact Families

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9-2=7

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

8-6=2

8-2=6, 2+6=8, 6+2=8

12-8=4

12-4=8, 8+4=12, 4+8=12

2+1=3

1+2=3, 3-2=1, 3-1=2

5+2=7

2+5=7, 7-5=2, 7-2=5

5-2=3

5-3=2, 3+2=5, 2+3=5

18-9=9

9+9=18

15-5=10

15-10=5, 5+10=15, 10+5=15

14+6=20

6+14=20, 20-14=6, 20-6=14

10-7=3

10-3=7, 7+3=10, 3+7=10

4-1=3

4-3=1, 3+1=4, 1+3=4

17-2=15

17-15=2, 15+2=17, 2+15=17

6+3=9

3+6=9, 9-6=3, 9-3=6