80 加法 8 等于多少？
80 + 8 = 88
80加法8 等于 88
竖式演算
验算
- 用减法验算：88 − 8 = 80
- 用减法验算：88 − 80 = 8
相关题目
80 + 7 = 87
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2 + 86 = 88
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95 - 7 = 88