Fact Families

Question 1

2,7,9

Answer 1

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

Question 2

2,8,10

Answer 2

2+8=10
8+2=10
10-8=2
10-2=8

Question 3

2,5,7

Answer 3

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

Question 4

2,9,11

Answer 4

2+9=11
9+2=11
11-9=2
11-2=9

Question 5

2,3,5

Answer 5

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

Question 6

2,4,6

Answer 6

2+4=6
4+2=6
6-4=2
6-2=4

Question 7

2,6,8

Answer 7

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

Question 8

2,10,12

Answer 8

2+10=12
10+2=12
12-10=2

Question 9

3,4,7

Answer 9

3+4=7
4+3=7
7-4=3
7-3=4

Question 10

3,5,8

Answer 10

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