《数学通报》的问题栏很有特色,有不少试题被改编为数学竞赛题,但是也有很多试题的解答被人为的增加了所谓的技巧、方法,使问题的解法失去了一般性,不能反映问题的本质,而且往往给人造成数学问题难的一种假象.为此有必要对数学问题的解答作出探究,寻求简单的、便于接受的、能反 There are many questions in the “Mathematics Bulletin” column, and many of the questions have been adapted into math competition questions. However, many questions have been artificially added so-called skills and methods to solve the problems and have not been generalized and can not be reflected The essence of the problem, and often give people a false impression of the difficulty of math problems.Therefore, it is necessary to explore the answer to math problems, to seek simple, easy to accept,