(1+6/1)×(1+7/1)×(1+8/1)×(1+9/1)×(1+10/1)用简便算法
问题描述:
(1+6/1)×(1+7/1)×(1+8/1)×(1+9/1)×(1+10/1)用简便算法
答
7/6*8/7*9/8*10/9*11/10
=1/6*7/7*8/8*9/9*10/10*11
=11/6