87 减法 9 等于多少?
87 - 9 = 78
87减法9 等于 78
竖式演算
验算
- 用加法验算:78 + 9 = 87
相关题目
87 - 8 = 79
87 - 10 = 77
87 - 11 = 76
87 - 7 = 80
87 - 12 = 75
87 - 6 = 81
87 - 13 = 74
87 - 5 = 82
86 - 9 = 77
88 - 9 = 79
85 - 9 = 76
89 - 9 = 80
84 - 9 = 75
90 - 9 = 81
91 - 9 = 82
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79 - 1 = 78
80 - 2 = 78
81 - 3 = 78
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83 - 5 = 78
84 - 6 = 78
70 - 13 = 57
81 - 26 = 55
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20 - 11 = 9
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53 + 25 = 78
27 + 51 = 78