subtraction/facts/starter · 세트 17

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