39乘以148/149+148乘以86/149+48乘以74/149
39乘以148/149+148乘以86/149+48乘以74/149
39乘以149分之148乘以149分之86加48乘以149分之74等于? 俺要简便方法,就在今天
39乘149分之148加上148乘以149分之86加48乘以149分之74用简便算法计算
39乘以149分之148加148乘以149分之61的和除以148怎么简便算?.
简便运算48乘以5乘以125
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.
25乘以?乘以?等于(?乘以12)乘以(?乘以?
35乘以48乘以2与48乘以35乘以2的结果有什么不同
100乘以(-2)乘以(-8)乘以0.01
9999乘以7778乘以3333乘以6666
几道简算题,74乘以73分之11 29乘以28分之3 39分之11乘以38 45分之44乘以37
1乘以2乘以3分之1+2乘以3乘以4分之1+3乘以4乘以5分之1+4乘以5乘以6分之1+········+48乘以49乘