为什么所有剩下的钱加起来是51元?

  • 时间:2020-04-24 15:44:06
  • 分类:数学世界
  • 阅读:87 次

一个人有50元,买了袜子20元,剩30元,然后买了水果15元,剩15元,接着买了饼干9元,剩下6元,最后坐车6元,请问为什么所有剩下的钱加起来是51元?

为什么呢?因为把每次剩下的钱加起来,本来就是51元啊!为什么一定要是50元呢?

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