subtraction/basic/medium · 세트 75

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