28 加法 52 等于多少？
28 + 52 = 80
28加法52 等于 80
竖式演算
验算
- 用减法验算：80 − 52 = 28
- 用减法验算：80 − 28 = 52
相关题目
28 + 51 = 79
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28 + 54 = 82
28 + 49 = 77
28 + 55 = 83
28 + 56 = 84
28 + 48 = 76
29 + 52 = 81
27 + 52 = 79
30 + 52 = 82
26 + 52 = 78
31 + 52 = 83
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2 + 78 = 80
3 + 77 = 80
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19 + 62 = 81
18 + 66 = 84
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85 - 5 = 80