1) 56 : ( -7 ) + 3 = -8 + 3 = -5;
2) -8х ( -5 ) + 75 : ( -15 ) = 40 + ( -5 ) = 35;
3) 3 - ( 12 - 28 ) : ( -4 ) х5 = -40 : ( -20 ) = 2;
4) 19 - ( 2 - 18 : 3 ) = 19 + 4 = 23;
5) - 60 : 15 + 7х ( 6 - 14 ) = -4 - 56 = 60;
6) - 11х ( 5 - 9 ) - 60 : ( -12 ) = 44 - ( -5 ) = 49.