Question

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

Answer 1

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