1) 4139+(4139-2028) * 3 - 2028=?2) 796 *547+283 *(796-547)=?3) 12856*2+ 684 * 63 : 7=?

Question

1) 4139+(4139-2028) * 3 - 2028=?
2) 796 *547+283 *(796-547)=?
3) 12856*2+ 684 * 63 : 7=?

Answer 1

1.8444
2.505879
3.31868