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数学选择题的特征就是:不管解答过程,给出四个答案,其中至少有一个答案是正确的。同学们可以结合数学选择题的特征,应用一些快速求解的方法解答。一、直接计算法直接计算法,就是依照题目给出的条件,根据数学问题的性质直接判断答案,或根据数学公式直接计算答案。这种方法适合用于数学条件全部给出,不需要用其他方法来计算的数学问题。数学基础扎实的同学可以应用这种计算方法。嗓现用习题1来说明:
The mathematical choice is characterized by four answers given regardless of the answer process, at least one of which is correct. Students can combine the characteristics of mathematical multiple choice questions and apply some quick solutions to solve them. First, the direct calculation method The direct calculation method is based on the conditions given in the subject, according to the nature of mathematical problems directly determine the answer, or directly according to the mathematical formula to calculate the answer. This method is suitable for all mathematical conditions given, do not need to use other methods to calculate the mathematical problems. A solid foundation of mathematics students can apply this method of calculation. Voice is used to illustrate 1 exercises: