两位数带借位 · 套题 73

20 problems
1
61 - 58 =
2
71 - 63 =
3
44 - 28 =
4
51 - 14 =
5
20 - 12 =
6
74 - 15 =
7
26 - 17 =
8
91 - 38 =
9
67 - 58 =
10
98 - 59 =
11
84 - 16 =
12
46 - 39 =
13
64 - 18 =
14
41 - 27 =
15
81 - 52 =
16
94 - 39 =
17
63 - 46 =
18
40 - 22 =
19
21 - 14 =
20
81 - 55 =
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