Răspuns :
Răspuns:
a) (+12)+(-11)+(+9)+(+7)=12-11+9+7=17
b) -9-|-3|+5=-9-3+5=-7
2. (+4)+(-2)=4-2=2
3. (-6)+(-1)=-6-1=-7
4. (+25)+(+10)+(+10)=25+10+10=45
5. (+12)+(-11)+(+9)+(+7)=12-11+9+7=17
6. -9-|-3|+5=-9-3+5=-7
7. -25+|-12+70-8|=-25+|50|=-25+50=25
8. -31-0=-31
9. -104-(+56)=-104-56=-160
10. -7-39=-46