2 加法 86 等于多少？
2 + 86 = 88
2加法86 等于 88
竖式演算
验算
- 用减法验算：88 − 86 = 2
- 用减法验算：88 − 2 = 86
相关题目
2 + 85 = 87
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2 + 88 = 90
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3 + 86 = 89
4 + 86 = 90
5 + 86 = 91
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