8.54-39.6/13.2怎样简便 4.5*3.2+6.36怎样简便 3.25*(4.39-2.79）怎样简便_数学解答

8.54-39.6/13.2怎样简便 4.5*3.2+6.36怎样简便 3.25*(4.39-2.79）怎样简便

人气：287 ℃　时间：2020-01-19 23:08:16

解答

8.54-39.6/13.2
=8.54-3
=5.54
4.5*3.2+6.36
=14.4+6.36
=20.76
3.25*(4.39-2.79）
=3.24*1.6
=5.184