72 减法 69 等于多少?
72 - 69 = 3
72减法69 等于 3
竖式演算
验算
- 用加法验算:3 + 69 = 72
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72 - 68 = 4
72 - 70 = 2
72 - 67 = 5
72 - 71 = 1
72 - 66 = 6
72 - 72 = 0
72 - 65 = 7
72 - 64 = 8
71 - 69 = 2
73 - 69 = 4
70 - 69 = 1
74 - 69 = 5
69 - 69 = 0
75 - 69 = 6
76 - 69 = 7
77 - 69 = 8
4 - 1 = 3
5 - 2 = 3
6 - 3 = 3
7 - 4 = 3
8 - 5 = 3
9 - 6 = 3
97 - 19 = 78
94 - 38 = 56
75 - 28 = 47
81 - 27 = 54
40 - 4 = 36
60 - 43 = 17
3 × 1 = 3
1 + 2 = 3