“小学数学教学的一项重要任务是培养计算能力,使学生能够正确地进行整数、小数、分数的四则运算,……”大纲中所说的“正确”是指计算的基本要求。计算在小学数学教学中是最为重要的一个环节,是学生学习数学的基础,也是小学数学教学的重点。它贯穿了小学数学教学的始终,学习时间最长、份量也最重。计算能力是一项基本的数学能力,培养小学生具有一定的计算能力,是小学数学教学的一项重要任务,也是小学数学教学的重要组成部分。正因如此,在县组 “An important task in elementary mathematics teaching is to develop computational skills so that students can correctly carry out arithmetic operations on integers, decimals, and fractions.” The “correctness” stated in the outline refers to the basic requirements of computing . Calculation in primary school mathematics teaching is the most important part, is the basis for students to learn mathematics, mathematics teaching is also the primary focus. It runs through the primary school mathematics teaching has always been the longest learning time, weight is also the most important. Computational ability is a basic mathematical ability. To train pupils with certain computing power is an important task in primary mathematics teaching and an important part of primary mathematics teaching. Because of this, in the county group