70 加法 53 等于多少？
70 + 53 = 123
70加法53 等于 123
竖式演算
验算
- 用减法验算：123 − 53 = 70
- 用减法验算：123 − 70 = 53
相关题目
70 + 52 = 122
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3 × 41 = 123
41 × 3 = 123