简便计算4.5*0.98144/0.6-4.2*3也许不能简算

Question

简便计算
4.5*0.98 144/0.6-4.2*3
也许不能简算

Answer 1

4.5*0.98=4.5*1-4.5*0.02=4.5-0.09=4.41
144/0.6-4.2*3 =240-12.6=227.4