97 加法 30 等于多少？
97 + 30 = 127
97加法30 等于 127
竖式演算
验算
- 用减法验算：127 − 30 = 97
- 用减法验算：127 − 97 = 30
相关题目
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96 + 30 = 126
98 + 30 = 128
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