Ответ:

  1. \(7 \times 2 = 14\).
  2. \(27 : 3 = 9\).
  3. \(16 : 2 = 8\).
  4. \(3 \times 3 = 9\).
  5. \(32 + 28 - 20 = 60 - 20 = 40\).
  6. \(16 + 36 + 18 = 52 + 18 = 70\).
  7. \(90 - 24 + 14 = 66 + 14 = 80\).
  8. \(63 + 27 - 56 = 90 - 56 = 34\).

Ответ: 14; 9; 8; 9; 40; 70; 80; 34.