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加减乘除四则混合运算法则是什么

更新时间: 2020-08-17 00:00:00     

法则:从左到右,先乘除后加减,有括号先算括号里面的,括号里面的也遵循从左到右,先乘除后加减的原则,如果有大括号、中括号、小括号,遵循先小括号,再中括号,最后大括号的原则。

关键词: 乘除 四则 混合 运算 法则 什么

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