4.67+(9-2.54+3.1)怎样简便计算呀?
问题描述:
4.67+(9-2.54+3.1)怎样简便计算呀?
答
4.67+(9-2.54+3.1)
=4.67-2.54+3.1+9
=2.13+3.1+9
=5.23+9
=14.23