52 加法 4 等于多少？
52 + 4 = 56
52加法4 等于 56
竖式演算
验算
- 用减法验算：56 − 4 = 52
- 用减法验算：56 − 52 = 4
相关题目
52 + 3 = 55
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52 + 7 = 59
52 + 8 = 60
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50 + 4 = 54
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64 - 8 = 56