4.66乘以0.28加4.66乘以0.82减4.66求简便计算

4.66乘以0.28加4.66乘以0.82减4.66求简便计算 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 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 5.3乘以99加5.3,12.5乘以35乘以25,13乘以2.5乘以0.8加3.6,19分之5减17分之4加19分之14减17分之13要用简便方法 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 2.5乘以12.5乘以0.8乘以0.4的简便计算 1.25乘以0.25乘以0.4乘以0.8等于? 简便计算