Missing Subtrahend (1-9) Using Minuend (20-28) Flashcards
1
Q
20 - ___ = 19
20 = ___ + 19
A
= 1
2
Q
20 - ___ = 18
20 = ___ + 18
A
= 2
3
Q
20 - ___ = 17
20 = ___ + 17
A
= 3
4
Q
20 - ___ = 16
20 = ___ + 16
A
= 4
5
Q
20 - ___ = 15
20 = ___ + 15
A
= 5
6
Q
20 - ___ = 14
20 = ___ + 14
A
= 6
7
Q
20 - ___ = 13
20 = ___ + 13
A
= 7
8
Q
20 - ___ = 12
20 = ___ + 12
A
= 8
9
Q
20 - ___ = 11
20 = ___ + 11
A
= 9
10
Q
21 - ___ = 19
21 = ___ + 19
A
= 2
11
Q
21 - ___ = 18
21 = ___ + 18
A
= 3
12
Q
21 - ___ = 17
21 = ___ + 17
A
= 4
13
Q
21 - ___ = 16
21 = ___ + 16
A
= 5
14
Q
21 - ___ = 15
21 = ___ + 15
A
= 6
15
Q
21 - ___ = 14
21 = ___ + 14
A
= 7
16
Q
21 - ___ = 13
21 = ___ + 13
A
= 8
17
Q
21 - ___ = 12
21 = ___ + 12
A
= 9
18
Q
22 - ___ = 19
22 = ___ + 19
A
= 3
19
Q
22 - ___ = 18
22 = ___ + 18
A
= 4
20
Q
22 - ___ = 17
22 = ___ + 17
A
= 5
21
Q
22 - ___ = 16
22 = ___ + 16
A
= 6
22
Q
22 - ___ = 15
22 = ___ + 15
A
= 7
23
Q
22 - ___ = 14
22 = ___ + 14
A
= 8
24
Q
22 - ___ = 13
22 = ___ + 13
A
= 9
25
23 - ___ = 19
23 = ___ + 19
= 4
26
23 - ___ = 18
23 = ___ + 18
= 5
27
23 - ___ = 17
23 = ___ + 17
= 6
28
23 - ___ = 16
23 = ___ + 16
= 7
29
23 - ___ = 15
23 = ___ + 15
= 8
30
23 - ___ = 14
23 = ___ + 14
= 9
31
24 - ___ = 19
24 = ___ + 19
= 5
32
24 - ___ = 18
24 + ___ = 18
= 6
33
24 - ___ = 17
24 = ___ + 17
= 7
34
24 - ___ = 16
24 = ___ + 16
= 8
35
24 - ___ = 15
24 = ___ + 15
= 9
36
25 - ___ = 19
25 = ___ + 19
= 6
37
25 - ___ = 18
25 = ___ + 18
= 7
38
25 - ___ = 17
25 = ___ + 17
= 8
39
25 - ___ = 16
25 = ___ + 16
= 9
40
26 - ___ = 19
26 = ___ + 19
= 7
41
26 - ___ = 18
26 = ___ + 18
= 8
42
26 - ___ = 17
26 = ___ + 17
= 9
43
27 - ___ = 19
27 = ___ + 19
= 8
44
27 - ___ = 18
27 = ___ + 18
= 9
45
28 - ___ = 19
28 = ___ + 19
= 9
