Ответ:

  1. \(9000 + 547 = 9547\).
  2. \(52\,000 + 87 = 52\,087\).
  3. \(403\,000 + 306 = 403\,306\).
  4. \(600\,000 + 630 = 600\,630\).
  5. \(30\,000 + 2000 + 67 = 32\,067\).