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15问答网 > 0.00.025x0.00.04的积有几位小数

0.00.025x0.00.04的积有几位小数

2025-02-12 18:11:55

推荐回答（1个）

回答1：

　　0.00025×0.0004的积有9位小数
　　注：末尾的0可以省略不写。

　　判断两个因数的积是几位小数，首先判断这两个因数一共有几位小数，积的小数的位数等于两个因数的小数位数之和。
　　在计算小数的乘法时：
　　1、先按照整数的乘法算出积，再点小数点；
　　2、积的小数位数等于因数的小数位数之和；
　　3、点小数点时，看因数中一共有几位小数，就从积的右边数出几位，点上小数点。

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