7. Calculaţi: a) 437: (2-27¹)+(3+3 105): 106; b) 33+3 ¹0:38-3+3-37:35+2-3¹0: (5 - 35 + 35) + 9 - 3³; c) [32-33 +254 : 252 + (35)4: 320]:31; d) [34% : 3¹8 + (24)³ + 62³ : 6¹³] : [(3³)² · (2²)² + 3¹7 · 3¹³ + (2³)′]; - e) 10-{24²:576 +3-[(32-2)¹5: (329-2¹5) +1²¹]}: 13; 10 f) 2100 [250-248 +(2¹0-2¹5)5: 227 +(576:575 -3)⁹0-28 +2⁹8]; g) [37-310+2203 : 2108 - 5. (5²)5]: (3¹7 +295 - 5¹¹).
