rpct.net
当前位置:首页 >> 2.5x0.32x1.25能简算吗? >>

2.5x0.32x1.25能简算吗?

能。 原式=(2.5×4)×(0.08×1.25) =10×0.1 =1

(2.5X0.4)X(1·25X0.8)=1

1.25x2.5x0.32=1.25x2.5x(8x0.4) =1.25x8x(2.5x0.4) =1x1 =1

1.25×0.32×250最简方法做 =(1.25×8)×(0.04×250) =10×10 =100

1.25x0.32x2.5 +2.5简便计算 1.25x0.32x2.5 +2.5 =2.5*(1.25*0.32+1) =2.5*1.4 =3.5

0.32×1.25。 =0.4×(0.8×1.25) =0.4×1 =0.4

这种题就要是凑整十,整百,25×4=100和125×8=1000是两个较常用的算式,所以原式可以如下简算 原式=2.5×1.25×0.4×0.8 =2.5×0.4×(1.25×0.8) =1×1=1

解:根据拆分法和结合律的运用, 原式=1.25x(0.8x0.4)x0.25 =(1.25x0.8)x(0.4x0.25) =1x0.1 =0.1

简便计算 25×0.32×1.25 =25x0.4x0.8x1.25 =(25x0.4)x(0.8x1.25) =10x1 =10

3.64÷(1.25×0.32) =3.64÷1.25÷0.32 =3.64÷(1.25x0.32) =3.64÷(1.25x0.8x0.4) =3.64÷(1x0.4) =3.64÷0.4 =9.1 希望帮到你 望采纳 谢谢 加油~

网站首页 | 网站地图
All rights reserved Powered by www.rpct.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com