“改写”与“省略写”是两个不同的概念,又是写数时的两种不同要求。同学们在学习时常常混淆,怎么办?先看下面几个例子:典型例题:把下面各数改写成用“亿”作单位的数。9000000000 230000000000思路分析:9000000000、230000000000要改写成用“亿”作单位的数,直接在这个数的末尾划掉八个0,再写上一个“亿”字。因 “Rewrite ” and “Omit write ” are two different concepts, but also two different requirements when writing numbers. Students often confused when learning, how to do? Look at the following few examples: A typical example: the following rewrite the number into “billion” for the number of units. 9000000000 230000000000 Analysis of ideas: 9000000000,230000000000 To be rewritten as “million ” for the number of units, directly at the end of this number crossed eight 0, then write a “billion ” word. because