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数的概念的形成和掌握是学习数学知识的基础。在统编小学数学教材里,整数的认识是分四个循环圈来安排教学的。多位数是小学阶段整数数系的最后一次扩张。学生能够正确、迅速地读、写多位数,才能为整数四则运算的全面掌握打下基础。记数原则是多位数读写的依据。学生对于多位数的认识过程,是一个系统整理整数概念的过程。由于扩大的自然数列0,1,2,3……的有序性和无穷性,不可能也没有必要用一个个独立的符号
The formation and mastery of the concept of number is the basis for learning mathematics. In the compilation of primary school mathematics textbooks, the understanding of integers is divided into four cycles to arrange teaching. Multi-digit is the last expansion of the system of integers in the elementary school. Students can read and write multi-digits correctly and quickly to lay the groundwork for a comprehensive grasp of integer arithmetic. The principle of counting is the basis for multi-digit reading and writing. Students understanding of the multi-digit process is a system of integer integer process. Due to the orderliness and infinity of the extended natural series 0, 1, 2, 3 ..., it is not possible or necessary to use separate symbols