50 加法 11 等于多少？
50 + 11 = 61
50加法11 等于 61
竖式演算
验算
- 用减法验算：61 − 11 = 50
- 用减法验算：61 − 50 = 11
相关题目
50 + 10 = 60
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50 + 8 = 58
50 + 15 = 65
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49 + 11 = 60
51 + 11 = 62
48 + 11 = 59
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2 + 59 = 61
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66 - 5 = 61