小朋友排成一队,从前面数小力排在第10个

  • 时间:2020-06-19 15:24:28
  • 分类:数学世界
  • 阅读:160 次

小朋友排成一队,从前面数小力排在第10个,从后面数小云排在第8个,小力和小云之间有2个小朋友,这对小朋友有( )人或( )人。这是一年级暑假作业中的题目,答案不就是20个人吗?为什么有()人或()人,这什么意思啊? 求解答……

解答如下:小朋友排成一队,从前面数小力排在第10个,从后面数小云排在第8个,小力和小云之间有2个小朋友,这对小朋友有( 20)人或( 14)人。

画个图就容易明白了,有两种情况,所以上面就要求填两种答案了。图中箭头表示数的方向:

小力小云

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