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小学三年级约等于规则
更新时间: 2021-04-15 08:37:09  

1、约等于就是大约多少的意思,是一个估计的数字,按四舍五入算法进行计算。

2、概念:通常会告知精确到的位数,如精确到十位,491就约等于490,按四舍五入算法,假如个位上的数字在4以下如362则约等于360了,假如个位上的数字大于五如287则就约等于290了。

关键词: 小学 年级 等于 规则

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