84 加法 25 等于多少？
84 + 25 = 109
84加法25 等于 109
竖式演算
验算
- 用减法验算：109 − 25 = 84
- 用减法验算：109 − 84 = 25
相关题目
84 + 24 = 108
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84 + 29 = 113
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85 + 25 = 110
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