2.45乘以7.8+2.45乘以2.2=简算
2.45乘以7.8+2.45乘以2.2=简算
7.8乘以4.2加2.2乘以4.2等于(7.8+2.2)乘以4.2这是根据( )简算
0.25乘以1.25乘以8乘以40=简算
1.36乘以4乘以2.5=简算
27046=2乘以( )+7乘以( )+4乘以( )+6乘以( )
(21乘以7分之3+7分之4乘以21)乘以4分之1=简算
=3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99!
1.1乘以四分之一+0.25乘以5.8+3.1乘以四分之一 简算
56.5乘以9.9乘以56.5简算
(-0.1)乘以(-100)乘以(-0.01)=?
12乘以231=132乘以21 则 12乘以462= 乘以 ,18乘以891= 乘以 ,24乘以231= 乘以 .
3.33乘以6.66简算