79 加法 7 等于多少？
79 + 7 = 86
79加法7 等于 86
竖式演算
验算
- 用减法验算：86 − 7 = 79
- 用减法验算：86 − 79 = 7
相关题目
79 + 6 = 85
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79 + 10 = 89
79 + 11 = 90
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80 + 7 = 87
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81 + 7 = 88
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2 + 84 = 86
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