一、引言笔者在工作实践中发现,农村中学生的数学运算能力存在着一些问题,如有些学生基础掌握不牢,对数学公式、定理、公理记忆混乱;有些学生运算方法欠佳,只会套公式,不能灵活运用;有些学生缺乏合理选择运算捷径的能力,不会对题目进行观察,结果导致计算量庞大、易出错;还有些学生眼高手低,认为只要解题思路正确就行,计算都是次要 I. INTRODUCTION In my work practice, I found that there are some problems in the math ability of middle school students in rural areas. For example, some students have a weak grasp of math, misunderstood math formulas, axioms and axioms. Some students have poor arithmetic and can only formulate formulas Some students lack the ability to reasonably choose shortcuts, and they do not observe the topics. As a result, they are computationally intensive and error-prone. Some students also have low-level experts who think that as long as the problem-solving ideas are correct, the calculations are of secondary importance