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
16
Q
18-4=
A
14
17
Q
18-3=
A
15
18
Q
18-2=
A
16
19
Q
18-1=
A
17
20
Q
18+1=
A
19
21
Q
18+2=
A
20
22
Q
19-1=
A
18
23
Q
19-2=
A
17
24
Q
19-3=
A
16
25
19-4=
15
26
19-5=
14
27
19-6=
13
28
19-7=
12
29
19-5=
14
30
19-4=
15
31
19-8=
11
32
19-7=
12
33
19-9=
10
