87 加法 33 等于多少？
87 + 33 = 120
87加法33 等于 120
竖式演算
验算
- 用减法验算：120 − 33 = 87
- 用减法验算：120 − 87 = 33
相关题目
87 + 32 = 119
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86 + 33 = 119
88 + 33 = 121
85 + 33 = 118
89 + 33 = 122
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