(1)-+-(-)- =[(-)+(-)]+[-(-)] =(-1)+1 =0;
(2)8×(-)×(-4)-2 =8××4-2 =24-2 =22;
(3)-14-2×(-3)2÷6 =-1-2×9÷6 =-1-18÷6 =-1-3 =-4;
(4)5+18÷()2×(-)-|-2| =5+18÷×(-)-2 =5+18××(-)-2 =5+(-)+(-2) =5+(-) =-7;
(5)-9÷3+(-)×12+(-3)2 =-3+×12-×12+9 =-3+6-8+9 =(-3)+(-8)+(6+9) =-11+15 =4;
(6)-42×[(1-7)÷6]3+[(-5)3-3]÷(-2)2 =-16×[-6÷6]3+(-125-3)÷4 =-16×(-1)+(-128)÷4 =16+(-32) =-(32-16) =-16. |