15 加法 45 等于多少？
15 + 45 = 60
15加法45 等于 60
竖式演算
验算
- 用减法验算：60 − 45 = 15
- 用减法验算：60 − 15 = 45
相关题目
15 + 44 = 59
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15 + 42 = 57
15 + 49 = 64
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14 + 45 = 59
16 + 45 = 61
13 + 45 = 58
17 + 45 = 62
12 + 45 = 57
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2 + 58 = 60
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37 + 72 = 109
60 + 83 = 143
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