简便计算9.99/2.1*8.4/39/1.11*3.9
问题描述:
简便计算9.99/2.1*8.4/39/1.11*3.9
答
9.99/2.1*8.4/39/1.11*3.9
=(9.99/1.11)*(8.4/2.1)*(3.9/2.1)
=9*4*3
=108