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三点5×199÷3点五怎么用简便方法计算
更新时间: 2021-05-19 00:12:08  

1、3.5×199÷3.5=3.5÷3.5×199=1×199=199。

2、在数的运算中,有加(+)、减(-)、乘(×)、除(÷)四种运算,我们在数学上又为了能更简便计算它们,简称称作简算,包含有几种简算公式。

关键词: 怎么 简便 方法 计算

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