多年来,我们很多教师一直有这样一个错误的认识:数学学习中计算是最为简单容易的,其实这是想当然,而学生在实际计算中往往适得其反。我们认为越是简单的东西,对于学生来说却是“最难的”也最容易出错。我们不妨来看看学生的练习、作业、考试卷……所有涉及计算类的题目,学生要么马虎,要么忘记了计算法则,要么忘了简便计算的运算定律,真是错误百出。要知道,数学计算要伴随学生的终生,其作用之大不必多言。在试卷 Over the years, many of our teachers have always had such a wrong understanding that in mathematics learning is the most simple and easy way to calculate. Actually, this is taken for granted and students are often counterproductive in actual calculations. The simpler thing we think is the “hardest” for the student and the easiest to go wrong. We may wish to take a look at the practice of students, homework, exam volumes ... ... All topics related to computing class, students either sloppy, or forget the rules of calculation, or forget the simple calculation of the law of operations, it is a mistake. You know, math calculations to be accompanied by the life of the student, its role Needless to say. In the papers