Ответ:

  1. \(4 + 26 - (6 \cdot 4) = 4 + 26 - 24 = 6\).
  2. \(43 - (13 + 7 \cdot 2) = 43 - (13 + 14) = 43 - 27 = 16\).
  3. \((48 : 6) + (45 : 5) = 8 + 9 = 17\).
  4. \((62 + 8) + (39 + 7) = 70 + 46 = 116\).