52 加法 77 等于多少？
52 + 77 = 129
52加法77 等于 129
竖式演算
验算
- 用减法验算：129 − 77 = 52
- 用减法验算：129 − 52 = 77
相关题目
52 + 76 = 128
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53 + 77 = 130
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43 × 3 = 129
3 × 43 = 129