Subtraction Within 20

1st Grade Common Core 1.OA.C.6

Take away and find what is left. Tip: think of the addition fact that goes with it.

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Subtraction Within 20

16 − 9 = 7
17 − 17 = 0
19 − 14 = 5
15 − 12 = 3
12 − 2 = 10
13 − 12 = 1
18 − 15 = 3
16 − 13 = 3
10 − 6 = 4
6 − 3 = 3
15 − 14 = 1
11 − 5 = 6
19 − 15 = 4
9 − 8 = 1
9 − 7 = 2
9 − 0 = 9
12 − 1 = 11
20 − 2 = 18
12 − 11 = 1
6 − 3 = 3
12 − 5 = 7
6 − 5 = 1
12 − 9 = 3
7 − 1 = 6