47 加法 81 等于多少？
47 + 81 = 128
47加法81 等于 128
竖式演算
验算
- 用减法验算：128 − 81 = 47
- 用减法验算：128 − 47 = 81
相关题目
47 + 80 = 127
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46 + 81 = 127
48 + 81 = 129
49 + 81 = 130
45 + 81 = 126
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29 + 99 = 128
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32 + 96 = 128
33 + 95 = 128
51 + 73 = 124
33 + 74 = 107
88 + 70 = 158
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8 × 16 = 128
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