math fact families addition and subtrction Flashcards
1
Q
8+7=
A
15
2
Q
15-8=
A
7
3
Q
15-7=
A
8
4
Q
16-7
A
9
5
Q
16-9=
A
7
6
Q
9+7
A
16
7
Q
17-8=
A
9
8
Q
17-9=
A
8
9
Q
9+8=
A
17
10
Q
18-9=
A
9
11
Q
9+9=
A
18
12
Q
18-8=
A
10
13
Q
18-7=
A
11
14
Q
18-6=
A
12
15
Q
18-5=
A
13
