188乘以99
101乘以99乘以9999
=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!
99乘以99-98乘以98
101乘以99+101
101乘以99/100
1乘以2乘以3乘以4.乘以99的积的末尾有几个零?
1乘以2+2乘以3+3乘以4+4乘以5……+97乘以98+98乘以99+99乘以100等于多少
1乘以2乘以3分之1+2乘以3乘以4分之1+……+98乘以99乘以100分之1
56分之53乘以57 2分之1乘以3分之2乘以4分之3乘以.乘以100分之99乘以101分之100
99乘以99加99乘以3的简便算法
99乘以99减98乘以98怎样简便运算
3.4乘以9+99乘以0.6怎么简便计算