2又2/5*73+91*7又3/5+1.8*24=?
问题描述:
2又2/5*73+91*7又3/5+1.8*24=?
答
2又2/5*73+91*7又3/5+1.8*24
=2.4*73+91*7.6+18*2.4
=2.4*(73+18)+91*7.6
=2.4*91+91*7.6
=91*(2.4+7.6)
=91*10
=910