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?

4.67+(9-2.54+3.1)
=4.67-2.54+3.1+9
=2.13+3.1+9
=5.23+9
=14.23