(0.2+6.37/0.7)*0.5简便算法
问题描述:
(0.2+6.37/0.7)*0.5简便算法
答
(0.2+6.37/0.7)*0.5
=(0.2+9.1x0.7/0.7)*0.5
=(0.2+9.1)*0.5
=9.3*0.5
=9.3/2
=4.65