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3.007保留一位小数是3.0对吗?

更新时间: 2021-02-25 06:05:37     

1、3.007保留一位小数是3.0,对

2、解析

保留一位小数要看小数点第二位、

大于或等于5的进一位、小于的话不用进

3、因为保留一位小数

看小数点后第二位

3.007小数点后第二位是0

所以不用进一

所以3.007≈3.0

关键词: 保留 小数

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