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