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2.5×37.8×0.8怎么用简便方法计算

2.5×37.8×0.8怎么用简便方法计算 2.5×37.8×0.8 =2.5x0.4x2x37.8 =1x75.6 =75.6

本题直接计算最简便 解: 37.8÷1.25×0.8 =30.24×0.8 =24.192 结果是24.192

解:运用拆分法和提取公因式的简便方法, 原式=27x0.37+0.37x0.8 =0.37x(27+0.8) =0.37x27.8 =10.286

37.8÷1.25×0.8(可以用简便算法吗?) 37.8÷1.25×0.8 =37.8*0.8*(1/1.25) =37.8*0.8/0.8 =37.8

原式等于 3.78×(3.5+5.5+1) =3.78×10 =37.8 所以原式的结果为37.8

37.8×0.075+0.378+0.25×3.78 =0.378*7.5+0.378+2.5*0.378 =(2.5+7.5)*0.378+0.378 =3.78+0.378 =4.158 ********************************************************* 祝你学习进步,更上一层楼! (*^__^*) 不明白的再问哟,请及时采纳,多谢! ...

1.25*(0.937*8) =1.25*8*0.937 =10*0.937 =9.37

3.78×9.5+37.8×0.05 =3.78x9.5+3.78x0.5 =3.78x(9.5+0.5) =3.78x10 =37.8

如图

您好: 19.98×37-199.8×1.9+1998x0.82 =1998×0.37-1998×0.19+1998+0.82 =1998x(0.37-0.19+0.82) =1998x1 =1998 ~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~ ~手机提问者在客户端右上角评价点【满意】即可。 ~你的采纳是我前进的动...

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