2乘以5=10 22乘以55=1210 222乘以555=1232100问2222乘以5555=?22222乘以5555
2乘以5=10 22乘以55=1210 222乘以555=1232100问2222乘以5555=?22222乘以5555
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!
6666乘以5555-6665乘以2222=?的简便作法
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
0.25乘以1.25乘以8乘以40=简算
8分之5乘以( )=( )乘以3分之2=0.1乘以( )=( )乘以12=1
解方程2乘以0.2x-3乘以0.3x+5乘以0.4x=0.3乘以5
(-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 .
1.36乘以4乘以2.5=简算