5*625*17*20*16如何简便计算
问题描述:
5*625*17*20*16如何简便计算
答
简便计算
5*625*17*20*16
=(5x20)x(625x16)x17
=100x(5x125x2x8)x17
=100x(5x2x125x8)x17
=100x10x1000x17
=17000000