71 加法 18 等于多少？
71 + 18 = 89
71加法18 等于 89
竖式演算
验算
- 用减法验算：89 − 18 = 71
- 用减法验算：89 − 71 = 18
相关题目
71 + 17 = 88
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71 + 21 = 92
71 + 15 = 86
71 + 22 = 93
71 + 14 = 85
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72 + 18 = 90
69 + 18 = 87
73 + 18 = 91
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2 + 87 = 89
3 + 86 = 89
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74 + 24 = 98
43 + 56 = 99
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2 + 94 = 96
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91 - 2 = 89