Question

5. Calculaţi:
a) (-6)2-(-9)+(-3)2 =
c) [(-12):3]2.43+(-4)5 =
e) [(-2)3 +2°74:73:75-49 =
1-2).(-1)]°-59.52.(5-102= h) (20–3)2-(6-4) -(8-10° -2°.(3-1
50
b) (-5+10 8:[(-4+9)4.(-5)]=
d) [(-3)*.94]:[(-3)?:(-3) -39]=
) [2+(-1)-5]?.(-3)9-310:(-3)23 =​

Answer 1

a) (-12)-(-9)+(-6)=(-12)+9+(-6)=(-3)+(-6)=-9