简便运算是小学数学教学的基本内容,它贯穿于小学数学教学的各个学段。教师对简便运算的教学都比较重视,各种考试也少不了考查一下学生简便运算的能力。随机收集了各地的小学数学毕业检测的试卷,80%以上试卷有简便运算这一内容。对简便运算,题目的要求通常有两种形式,一种是很明确的:“用简便方法计算下列各题”;另一种是“计算下列各题,能用简便方法计算的用简便方法计算”。 Simple operation is the basic content of primary school mathematics teaching, which runs through the various sections of primary school mathematics teaching. Teachers are more emphasis on the teaching of simple operations, all kinds of exams ultimately test the ability of students to operate easily. Randomly collected around the primary school mathematics graduation test papers, 80% of the papers have a simple operation of this content. There are usually two forms of requirements for simple operations and topics. One is very clear: “Calculating the following questions in a simple way”; the other is “calculating the following questions, which can be calculated in a simple way Easy way to calculate ”.