5.68乘以0.47加0.63乘以5.68减5.68乘以0.1

5.68乘以0.47加0.63乘以5.68减5.68乘以0.1 5.6乘以9加56乘以0.1简便计算 简算：4.4乘以57.8加45.3乘以5.6. 9.99乘以22.2加33.3乘以3.34 9.99乘以22.2加33.3乘以3.34 9999乘以7加1111乘以37 26乘以187加169乘以2 111111乘以999999加999999乘以555555 一乘以二乘以三分之一加2乘以3乘以4分之一+3乘以4乘以5分之1+……+48乘以49乘以50分之1. 2000乘以1999减1999乘以1998加1998乘以1997减1997乘以1996,简算 五年级 0.15乘以0.8乘以12.5加8乘以3乘以0.125怎么简便算 7.2乘以5.6加0.72乘以44用简便算法算 52乘以76加47乘以76加76 1200乘以5加1800乘以15加2500乘以4加3000乘以2加5000除以27等于? 999乘以99加99 99乘以38加38. 1999乘以99加1999 20乘以20减19乘以19加18乘以18减17乘以17加...加2乘以2减1乘以1的结果