Ответ:

  1. \(92-(47+8)=92-55=37\).
  2. \((18+43)-9=61-9=52\).
  3. \((74+10)+6=84+6=90\).
  4. \(59-(42-4)=59-38=21\).
  5. \((27+33):10=60:10=6\).
  6. \(90:(69-59)=90:10=9\).
  7. \((74+26):10=100:10=10\).
  8. \(0\cdot(34-18)=0\cdot16=0\).