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:121 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

推荐阅读:
5 Tips to Drive Traffic to Your Blog  Ideas to Help You Set Up the Home Office of Your Dreams  Wix vs Squarespace 2020 – Things You Must Know  How to Delete N Nodes After M Nodes of a Linked List?  Bruteforce Algorithm to Find the Unique Positive Integer Whose S  Clone (Deep Copy) Binary Tree With Random Pointer using Hash Map  How to Compute Running Sum of 1d Array using std::partial_sum in  How to Renew the Free SSL Certificates (Nginx Server)?  Design: How to Solve 503 Error of API when Resources are not ava  SteemJs Programming: What Happens on the Steem Blockchain in the 
评论列表
添加评论