3.6*1.35+6.4*1.34如何简算
问题描述:
3.6*1.35+6.4*1.34如何简算
(0.4+20)*25
答
3.6*1.35+6.4*1.34=3.6*1.35+6.4*1.35-6.4*0.01=1.35*(3.6+6.4)-0.064=13.5-0.064=13.436
3.6*1.35+6.4*1.34如何简算
(0.4+20)*25
3.6*1.35+6.4*1.34=3.6*1.35+6.4*1.35-6.4*0.01=1.35*(3.6+6.4)-0.064=13.5-0.064=13.436