7.数字使用中的注意事项(1)尾数“0”多的5位以上数字,可以改写为以万和亿为单位的数。一般情况下不得以十、百、千、十万、百万、千万、十亿、百亿、千亿等作单位(百、千、兆词头除外)。例如:1800000可写成180万;142500可写成14.25万,不能写成14万2千5百;5000字不能写成5千字 7. Precautions for digital use (1) Numbers of more than 5 digits for the mantissa “0” can be rewritten as numbers in million and thousands. Under normal circumstances, no ten, one hundred, one thousand, one hundred thousand, one million, one hundred million, one hundred billion, one hundred billion, one hundred billion, etc. shall not be used as units (except hundred, thousand, trillion). For example: 1800000 can be written as 180 million; 142500 can be written as 142,500, can not be written 142,500 2,500; 5000 words can not be written in 5 words