12 加法 61 等于多少？
12 + 61 = 73
12加法61 等于 73
竖式演算
验算
- 用减法验算：73 − 61 = 12
- 用减法验算：73 − 12 = 61
相关题目
12 + 60 = 72
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12 + 64 = 76
12 + 65 = 77
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13 + 61 = 74
10 + 61 = 71
14 + 61 = 75
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2 + 71 = 73
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26 + 52 = 78
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90 - 17 = 73