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