85 减法 15 等于多少？
85 - 15 = 70
85减法15 等于 70
竖式演算
验算
- 用加法验算：70 + 15 = 85
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85 - 14 = 71
85 - 16 = 69
85 - 13 = 72
85 - 17 = 68
85 - 12 = 73
85 - 18 = 67
85 - 11 = 74
85 - 19 = 66
84 - 15 = 69
86 - 15 = 71
83 - 15 = 68
87 - 15 = 72
88 - 15 = 73
82 - 15 = 67
89 - 15 = 74
81 - 15 = 66
71 - 1 = 70
72 - 2 = 70
73 - 3 = 70
74 - 4 = 70
75 - 5 = 70
76 - 6 = 70
78 - 57 = 21
88 - 75 = 13
37 - 15 = 22
65 - 60 = 5
73 - 42 = 31
6 - 2 = 4
68 + 2 = 70
70 × 1 = 70