28 加法 69 等于多少？
28 + 69 = 97
28加法69 等于 97
竖式演算
验算
- 用减法验算：97 − 69 = 28
- 用减法验算：97 − 28 = 69
相关题目
28 + 68 = 96
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29 + 69 = 98
27 + 69 = 96
30 + 69 = 99
26 + 69 = 95
31 + 69 = 100
25 + 69 = 94
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2 + 95 = 97
3 + 94 = 97
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100 - 3 = 97