Ответ:

  1. \(41+(23-20)=41+3=44\).
  2. \(80-(33+7)=80-40=40\).
  3. \(65-(48+12)=65-60=5\).
  4. \(22+(55-25)=22+30=52\).
  5. \(64-3+7=61+7=68\).
  6. \(75-4+7=71+7=78\).
  7. \(4+38-30=42-30=12\).
  8. \(82-60-2=22-2=20\).

Ответ: 44; 40; 5; 52; 68; 78; 12; 20.