28 加法 87 等于多少？
28 + 87 = 115
28加法87 等于 115
竖式演算
验算
- 用减法验算：115 − 87 = 28
- 用减法验算：115 − 28 = 87
相关题目
28 + 86 = 114
28 + 88 = 116
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28 + 90 = 118
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29 + 87 = 116
27 + 87 = 114
30 + 87 = 117
26 + 87 = 113
31 + 87 = 118
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16 + 99 = 115
17 + 98 = 115
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20 + 95 = 115
99 + 74 = 173
8 + 93 = 101
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82 + 59 = 141
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88 + 28 = 116
23 × 5 = 115
5 × 23 = 115