55 加法 8 等于多少？
55 + 8 = 63
55加法8 等于 63
竖式演算
验算
- 用减法验算：63 − 8 = 55
- 用减法验算：63 − 55 = 8
相关题目
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2 + 61 = 63
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87 - 24 = 63