54 加法 84 等于多少？
54 + 84 = 138
54加法84 等于 138
竖式演算
验算
- 用减法验算：138 − 84 = 54
- 用减法验算：138 − 54 = 84
相关题目
54 + 83 = 137
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53 + 84 = 137
55 + 84 = 139
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52 + 84 = 136
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39 + 99 = 138
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32 + 39 = 71
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23 × 6 = 138
69 × 2 = 138