subtraction/with-borrowing/hard · 세트 21

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