“计算”是人们在日常生活中应用最多的数学知识,也是小学数学教学的基本内容。培养小学生的计算能力既是小学数学教学的重要目标之一,又是提高教学质量的关键。随着新一轮基础教育课程改革 “Calculation ” is the most commonly used mathematical knowledge in daily life. It is also the basic content of elementary mathematics teaching. The cultivation of pupils’ computing ability is not only one of the important goals of primary school mathematics teaching, but also the key to improving teaching quality. With the new round of basic education curriculum reform