(0.69*65*1.8)/(13*9*23)要简便计算

问题描述:

(0.69*65*1.8)/(13*9*23)要简便计算

(0.69*65*1.8)/(13*9*23)
=(0.03*23*5*13*0.2*9)/(13*9*23)
=0.03*5*0.2
=0.03