ldcf.net
当前位置:首页 >> 12.5×4.8的简便运算. >>

12.5×4.8的简便运算.

12.5x4.8 =12.5x8x0.6 =100x0.6 =60

2.1乘12.5乘4.8,该怎么简便运算的

2.1×(12.5×4)×1.2=2.1×60=126

12-4.8×0.5 =12-12x0.4x0.5 =12x(1-0.4x.05) =12x0.8 =9.6

4×12.5+0.8×12.5 =50+10=60

12.5x4.8=12.5x(4+0.8)=12.5x4+12.5x0.8=50+10=60 12.5x4.8=12.5x(5-0.2)=12.5x5-12.5x0.2=62.5-2.5=60

2.5*4.8*12.5 =2.5*(0.6*8)*12.5 =2.5*(8*12.5)*0.6 =2.5*100*0.6 =25*6 =150

2.1乘以12.5乘以4.8 =2.1×12.5×(8×0.6) =(2.1×0.6)×(12.5×8) =1.26×100 =126

17.5+3.2+4.8+12.5 =(17.5+12.5)+(3.2+4.8) =30+8 =38 祝天天向上。

(8.4-4.8)÷1.25-0.8 =3.6÷1.25-0.8 =2.88-0.8 =2.08

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