竖式 · 套题 94

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