竖式 · 套题 98

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