77 加法 8 等于多少？
77 + 8 = 85
77加法8 等于 85
竖式演算
验算
- 用减法验算：85 − 8 = 77
- 用减法验算：85 − 77 = 8
相关题目
77 + 7 = 84
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77 + 11 = 88
77 + 5 = 82
77 + 12 = 89
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2 + 83 = 85
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17 × 5 = 85