60 加法 60 等于多少？
60 + 60 = 120
60加法60 等于 120
竖式演算
验算
- 用减法验算：120 − 60 = 60
- 用减法验算：120 − 60 = 60
相关题目
60 + 59 = 119
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59 + 60 = 119
61 + 60 = 121
58 + 60 = 118
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