4/7乘以()=2011乘以()=()乘以0.25=()乘以1/25=1
9分之4乘以( )=( )乘以8=1=0.5乘以( )
25乘以?乘以?等于(?乘以12)乘以(?乘以?
27046=2乘以( )+7乘以( )+4乘以( )+6乘以( )
=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!
2/1乘以(-b/k)乘以b=25/4 化简b
【1.9+19%乘以(4.8-2.4)】除以(53乘以0.25+30.6乘以0.25)=?
填空:4分之3乘以8=6乘以()=10乘以()
100分之91乘以99= 16分之13 乘以(1-13分之6)= 5分之4乘以3分之8-0.8乘以
A=B乘以57 A乘以2等于B乘以( )A乘以5等于B乘以( )A乘以()等于B乘以12 A乘以()等于B乘以29
观察1乘以2乘以3乘以4+1=25=5² 2乘以3乘以4乘以5+1=121=11²
3分之1乘以()=()乘以5分之2=8乘以()=()乘以0.3=1
6分之五乘以( )=( )乘以四分之三=( )乘以19=( )乘以十七分之二