subtraction/basic/medium · 세트 78

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