28 加法 24 等于多少？
28 + 24 = 52
28加法24 等于 52
竖式演算
验算
- 用减法验算：52 − 24 = 28
- 用减法验算：52 − 28 = 24
相关题目
28 + 23 = 51
28 + 25 = 53
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28 + 26 = 54
28 + 21 = 49
28 + 27 = 55
28 + 20 = 48
28 + 28 = 56
29 + 24 = 53
27 + 24 = 51
30 + 24 = 54
26 + 24 = 50
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2 + 50 = 52
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33 + 17 = 50
22 + 84 = 106
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97 - 45 = 52