数列问题在高中数学中占有重要地位,历年来都是高考所要考查的重点.从而能否准确而快速解答它成为高考成败的一个关键,在处理时用基本量法,虽然思路易懂,但有运算量较大,费时费力.为同学们能更好更快地战胜它,下面结合实例介绍几种减少运算量的技巧,以期对同学们有所帮助. The mathematics problem occupies an important position in high school mathematics. It has been the focus of the college entrance examination over the years. Therefore, whether it can accurately and quickly answer the question is a key to the success or failure of the college entrance examination. When it is processed, it is based on the basic measurement method. Although it is easy to understand, it has Larger amount of calculation, time-consuming and laborious. For the students to better and faster to overcome it, the following examples of the introduction of several techniques to reduce the amount of computation, in order to help the students.