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
