化简 (1)-|-2.85|=______; (2)+|-12|=______; (3)|-(-3
(4)+(-|-5|)=______. |
(1)-|-2.85|=-2.85.
(2)+|-12|=12.
(3)|-(-3
)|=|31 2
|=31 2
.1 2
(4)+(-|-5|)=+(-5)=-5.
故答案为:-2.85,12,3
,-5.1 2
化简 (1)-|-2.85|=______; (2)+|-12|=______; (3)|-(-3
(4)+(-|-5|)=______. |
(1)-|-2.85|=-2.85.
(2)+|-12|=12.
(3)|-(-3
)|=|31 2
|=31 2
.1 2
(4)+(-|-5|)=+(-5)=-5.
故答案为:-2.85,12,3
,-5.1 2