75 加法 2 等于多少？
75 + 2 = 77
75加法2 等于 77
竖式演算
验算
- 用减法验算：77 − 2 = 75
- 用减法验算：77 − 75 = 2
相关题目
75 + 1 = 76
75 + 3 = 78
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75 + 5 = 80
75 + 6 = 81
75 + 7 = 82
75 + 8 = 83
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73 + 2 = 75
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