61 加法 15 等于多少？
61 + 15 = 76
61加法15 等于 76
竖式演算
验算
- 用减法验算：76 − 15 = 61
- 用减法验算：76 − 61 = 15
相关题目
61 + 14 = 75
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61 + 18 = 79
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62 + 15 = 77
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2 + 74 = 76
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