竖式 · 套题 61

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