3.34*8.37-3.34*5.37-3.34的简便算法
问题描述:
3.34*8.37-3.34*5.37-3.34的简便算法
答
3.34*8.37-3.34*5.37-3.34
=3.34*(8.37-5.37-1)
=3.34*2
=6.68