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3.75%【7.2÷4.5÷2】怎么简算

2.95

难道你们都没有看出来8.25-3点七五可以写成8.25+3点七五再除于25×4的积,这样才是最简便的数 谢谢

[3.75-(0.2+1/3)×4.5]÷13.5 =[3.75-0.2×4.5-1/3×4.5]÷13.5 =[3.75-0.9-1.5]÷13.5 =1.35÷13.5 =0.1

(1)(2.5×45)÷(14×0.8)?0.75÷340,=2÷0.2-10,=10-10,=0;(2)1417×(223?34)+1112÷1721,=2117×2312+1112×2117,=(2312+1112)×2117,=3412×2117,=72;(3)718×4.5+3.75÷16.2×215,=1.75+154×233×115,=1.75+0.5,=2.25;(4)[1?(112+115...

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