Ответ:

  1. \(6.7 - 2.3 = 4.4\).
  2. \(6 - 0.02 = 5.98\).
  3. \(3.08 + 0.2 = 3.28\).
  4. \(2.54 + 0.06 = 2.60 = 2.6\).
  5. \(8.2 - 2.2 = 6\).

Ответ: 4,4; 5,98; 3,28; 2,6; 6.