Subtraction up to 20 Flashcards
0
Q
19 - 1
A
18
1
Q
20 - 5
A
15
2
Q
20 - 2
A
18
2
Q
4 - 1
A
3 minus one is the next smaller number
3
Q
2 - 1
A
1 minus one is the next smaller number
3
Q
14 - 1
A
13
4
Q
12 - 1
A
11
5
Q
20 - 17
A
3
5
Q
5 - 1
A
4 minus one is the next smaller number
6
Q
20 - 16
A
4
6
Q
3 - 1
A
2 minus one is the next smaller number
7
Q
20 - 7
A
13
8
Q
20 - 13
A
7
9
Q
20 - 9
A
11
9
Q
16 - 1
A
15
10
Q
10 - 1
A
9
11
Q
11 - 1
A
10
13
Q
20 - 14
A
6
15
Q
20 - 1
A
19
16
Q
7 - 1
A
6
17
Q
20 - 10
A
10
18
Q
20 - 18
A
2
19
Q
18 - 1
A
17
21
Q
20 - 12
A
8
23
20 - 4
16
24
15 - 1
14
25
17 - 1
16
26
8 - 1
7
27
20 - 3
17
29
9 - 1
8
30
13 - 1
12
31
1 - 1
0 nothing
32
20 - 15
5 same answer as 15 + 5 = 20 only 5 skips between 15 and 20
33
20 - 11
9
34
6 - 1
5 minus one is the next smaller number
35
20 - 19
1 the difference between 20 and 19 is only one skip
37
20 - 8
12
38
20 - 1
19
