99+98+97+96+95+94+93=( )乘以( )=
99+98+97+96+95+94+93=( )乘以( )=
99乘以98减98乘以97加96乘以95减95乘以94加.加6乘以5减5乘以4加3乘以2减2乘以1等于多少
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
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
=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!
6分之五乘以( )=( )乘以四分之三=( )乘以19=( )乘以十七分之二
解方程 24乘以5+5乘以(x-5)=(24乘以5 +5x)乘以0.9
9分之4乘以( )=( )乘以8=1=0.5乘以( )
3367乘以( )=555555 3367乘以( )=777777 3367乘以( )=999999
填空:4分之3乘以8=6乘以()=10乘以()
【1.9+19%乘以(4.8-2.4)】除以(53乘以0.25+30.6乘以0.25)=?
四年级乘法分配律:49乘以 + 乘以51=36乘以(?+49)