89 加法 32 等于多少？
89 + 32 = 121
89加法32 等于 121
竖式演算
验算
- 用减法验算：121 − 32 = 89
- 用减法验算：121 − 89 = 32
相关题目
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90 + 32 = 122
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11 + 6 = 17