(0.75×42.6-0.574×25+57.4)÷3的简便方法计算

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(0.75×42.6-0.574×25+57.4)÷3的简便方法计算(0.75×42.6-0.574×25+57.4)÷3的简便方法计算(0.75×42.6-0.574×25+57.4)÷3的简便方法

(0.75×42.6-0.574×25+57.4)÷3的简便方法计算
(0.75×42.6-0.574×25+57.4)÷3的简便方法计算

(0.75×42.6-0.574×25+57.4)÷3的简便方法计算
(0.75×42.6-0.574×25+57.4)÷3
=(0.75×42.6-57.4×0.25+57.4)÷3
=(0.75×42.6+(1-0.25)×57.4)÷3
=(0.75×42.6+0.75×57.4)÷3
=(0.75×(42.6+57.4))÷3
=0.75×100÷3
=75÷3
=25