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