比较两数大小的题目题型虽小,但技巧性、综合性都比较强,且解法灵活,涉及的知识面较广.运用中间值法比较两数大小,这个中间值如何找、怎么找、从哪里入手找、哪几个数是常用的中间值,不少同学感到困难,甚至无所适从.下面就此问题作一些归纳、总结、探讨.1.找0为中间值例1(2013年湖南省高中数学竞赛试题) Comparison of the two numbers of the size of the problem is small, but the skills, comprehensive are relatively strong, and the solution is flexible, involving a wider range of knowledge. The use of median comparison of two numbers, the median how to find how to find, From where to start to find, which is the median number of commonly used intermediate, many students feel difficult, or even know what to do. Here are some of the problems for some induction, summary, discussion .1 find 0 as the median Example 1 (2013 Hunan High School Mathematics contest questions)