49 加法 70 等于多少？
49 + 70 = 119
49加法70 等于 119
竖式演算
验算
- 用减法验算：119 − 70 = 49
- 用减法验算：119 − 49 = 70
相关题目
49 + 69 = 118
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50 + 70 = 120
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7 × 17 = 119