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795与406减去398的差相乘
更新时间: 2021-04-03 07:02:29  

1、795×(406-398)=795×8=6360。

2、整数四则混合运算法顺序。(1)同级运算时,从左到右依次计算。(2)两级运算时,先算乘除,后算加减。(3)有括号时,先算括号里面的,再算括号外面的。(4)有多层括号时,先算小括号里的,再算中括号里面的,再算大括号里面的,最后算括号外面的。(5)要是有乘方,最先算乘方。(6)在混合运算中,先算括号内的数,括号从小到大,如有乘方先算乘方,然后从高级到低级。

关键词: 减去 相乘

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