谁能帮我算这道题 41.2*3.6+16*5/4+53.7*6.4 巧算,
问题描述：
谁能帮我算这道题 41.2*3.6+16*5/4+53.7*6.4 巧算,
答
=41.2*(1-6.4)+16*5/4+53.7*6.4
=41.2+(53.7-41.2)*6.4+16*1.25
=41.2+1.25*64+16*1.25
=41.2+1.25*80
=41.2+100
=141.2