判断题是小学数学试题中的常见题型之一,主要是在概念或运算上二故意制造混乱、迷惑考生,使“鱼目”与“珍珠”难以区分,要想正确迅速地解答判断题,其关键是要识破其庐山真面目了,具体做法有如下几种:一、排除法:排除法就是对题中含有“所有”“全是”“一定”之类词语的说法,只要举出一个反例,就可直接判定该说法是错误的。例如:所有的质数都是奇数。分析与判断:根据质数的定义,一个数只有1和它本身两个约 Judgment questions are one of the most common types of questions in elementary school mathematics. They mainly make confusion on the concept or operation, confuse candidates and make it hard to distinguish between “fish head” and “pearl”. To correctly and promptly Answer to determine the problem, the key is to see its true colors, the specific practices are as follows: First, the exclusion of law: the exclusion of the law is the title contains “all ” “all ” “must ” As long as a counterexample is given, we can directly determine that the argument is wrong. For example: All prime numbers are odd. Analysis and Judgment: According to the definition of prime numbers, a number is only 1 and itself about two