65*0.37-6.5*2.7= 求简便算法?
问题描述:
65*0.37-6.5*2.7= 求简便算法?
答
65*0.37-6.5*2.7
=6.5×3.7-6.5×2.7
=6.5×(3.7-2.7)
=6.5×1
=6.5