subtraction/basic/medium · 세트 7

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