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数与计算是人们在日常生活中应用最多的数学知识,它历来是小学数学教学的基本内容,培养小学生的计算能力也一直是小学数学教学的主要目的之一。《数学课程标准》指出:“课堂是一个学生的主动参与,
Number and calculation are the most commonly used mathematical knowledge in daily life. It has always been the basic content of primary mathematics teaching. It has been one of the main purposes of elementary mathematics teaching to cultivate primary students’ computing abilities. The Mathematics Curriculum Standard states: ”Classroom is the active participation of a student,