816*502:(85117-84913)-288*703:(405060-404916)

Question

816*502:(85117-84913)-288*703:(405060-404916)

Answer 1

1)(85117-84913)=204
2)(405060-404916)=144
3)816*502=409632
4)409632/204=2008
5)288*703=202464
6)202464/144=1406
7)2008-1406=602

Answer 2

816*502:(85117-84913)-288*703:(405060-404916)=
=409632:204-202464:144=2008-1406=602