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选择题具有构思巧妙、概念性强、知识容量大、覆盖面广且评分标准统一等优点,因而历来是各地中考数学的重要题型之一要想迅速正确地解它,必须掌握其特点及解题方法与技巧,下面通过实例介绍选择题的几种巧解方法.一、直接求解法直接从题设的条件出发,运用所学的定义、定理、法则、公式等,或者结合自我积累的解题经验进行严密的推理或正确的运算.然后将所得结果与四个选择支对照,得出正确答案.这是解选择题的基本方法.
Multiple choice questions have the advantages of cleverness of concept, strong conceptualization, large knowledge capacity, wide coverage and uniform scoring standards. Therefore, one of the most important questions in the mathematics examinations around the world is to grasp the characteristics and solutions of the multiple choice questions promptly and correctly. Methods and techniques, the following examples through several ingenious solutions to multiple-choice questions. First, the direct solution directly from the title set conditions, the use of the learned definitions, theorems, rules, formulas, etc., or combined with self-solve problem The experience of rigorous reasoning or correct operation.Then the results of the four options and the control branch, come to the correct answer.This is the basic solution to multiple-choice questions.