👤

8. Calculeaza: a) (125: 5-140:2): (-9) + (-324): (-18); b) [13 (-15)-(22-9.3)] (-5) - 900; c) 50+2 (40-8 [30 +3 (10-45: 3)]}; d) 12 + {[(82 - 10²): 6 - (7·15 - 50 3)] 3}: (-13); e) [(-2)-2-(-5)² + 3 ⋅ (10 : 2 - 9)] · 5; f) [3 (-3)2 (-3)10: 312-210.216: 223]: 5;​