1.25×25×32.32×69的简便计算
问题描述:
1.25×25×32.32×69的简便计算
答
=5/4×25×32.32×69=125×8.08×69=125×(8+0.08)×69=(1000+10))×69=69000+690=6990
答
1.25×25×32.32×69
=1.25*25*8*4*1.01*69
=(1.25*8)*(25*4)*(1.01*69)
=10*100*69.69
=69690