369-e.net
当前位置:首页>>关于125x 8 4 x25两种方法计算的资料>>

125x 8 4 x25两种方法计算

[(4x8)x25-8]x125=4*8*25*125-8*125=4*25*8*125-8*125=100*1000-1000=100000-1000=99000

125x8x25x4 =1000x25x4 =25000x4 =100000

125x(8x4)x25=(125x8)x(4x25)=1000x100=100000

括号内先算,4-8为-4,4和25相乘为100,100乘125,为12500,加个负号,就是-12500

(125*4+125*8)*25 =(500+1000)*25 =1500*25 =37500

简便计算125x(8x4)*25=(125x8)x(25x4)=1000x100=100000

(125x25)x8=125x25x8=125x8x25=1000x25=25000

简便计算125*25*8*4=(125x8)x(25x4)=1000x100=100000

125x32x25 =(125x8)x(25x4) =1000x100 =100000

rjps.net | sichuansong.com | rxcr.net | 369-e.net | zdly.net | 网站首页 | 网站地图
All rights reserved Powered by www.369-e.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com