Question

 

 

 2020 x 0,56 + 0,36 x 6060 + 8080 x 0,85 + 2020 x 5,02

 

 

Answer 1

 2020 x 0,56 + 0,36 x 6060 + 8080 x 0,85 + 2020 x 5,02 

=1131,2+2181,6+6868+10140,4 

=20321,2

Answer 2

   2020 x 0,56 +0,36x6060+8080x0,85+2020x5,02

=2020 x 0,56 +0,36x3x2020+4x2020x0,85+2020x5,02

=2020 x 0,56 +1,08x2020+3,4x2020+2020x5,02

=2020x(0,56+1,08+3,4+5,02)

= 2020x10,06

=20321.2