9.8乘以65.2乘以1.25减12.5乘以0.625乘以18怎样简算

9.8乘以65.2乘以1.25减12.5乘以0.625乘以18怎样简算 2.5乘以3.2乘以12.5 3.2乘以1.25+4.8乘以12.5的简便算法 1.2乘以1.25减0.2乘以1.25怎样简便计算 0.26乘以9.8减0.74乘以0.2的简便运算、 1.25乘以320乘以25简便计算 6.89乘以101减6.89简便计算 16乘以0.25乘以1.25简便计算 2.5乘以12.5乘以0.8乘以0.4的简便计算 最后一个是0.8乘以0.25乘以0.4乘以12.5 0.5乘以12.5乘以2.5乘以128（要简便） 0.25乘以1.25乘以8乘以40=简算 1.25乘以0.25乘以0.4乘以0.8等于? 简便计算 3.14乘以9.8乘以 6.4等于多少 1.25乘以0.98乘以0.8等于几? 1.25 乘以 三分之二 乘以 0.8 等于多少 1.25乘以7乘以80.8怎么简便? 1.25乘以1.3等于多少乘以13 4.2乘以1.2减5.2乘以0. 72乘以2.09减1.8乘以73.6