小朋友,在学习“六数的认识”时,经常会遇到“改写”与“省略”。你能将他们区别开来吗?其实,这两者是有不同之处的,具体表现为以下三个方面。一、意义不同“改写”是把较大的数改写成用“万”或“亿”作单位的数,这样做是为了便于读写;而“省略”是用“四舍五入法”省略较大数的万位或亿位后面的尾数,取这个数的近似值,这样做是为了满足实际的需要。二、方法不同把较大的数改写成用“万”或“亿”作单位的数,只要把万位或 Children often encounter “rewrite ” and “omit ” when they learn “Six Number Recognition ”. Can you distinguish them? In fact, there are differences between the two, which are manifested in the following three aspects. First, the meaning is different “rewrite ” is to rewrite a larger number with “million ” or “million ” for the number of units, this is done in order to facilitate reading and writing; “Rounding ” Omit the larger mantissa or billion bits behind the mantissa, take an approximation of this number, this is done to meet the actual needs. Second, different ways to rewrite the larger number with “million ” or “billion ” for the number of units, as long as the million or