8-4.68/4.5X(0.25+0.5)简便算法

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8-4.68/4.5X(0.25+0.5)简便算法
8-4.68/4.5X(0.25+0.5)简便算法

8-4.68/4.5X(0.25+0.5)简便算法
8-4.68/4.5X(0.25+0.5)
=8-468/450*(25+50)/100
=8-468/(75*6)*75/100
=8-468/6/100
=8-6*78/6/100
=8-78/100
=(800-78)/100
=722/100
=7.22