Ответ:

  1. \(23\,000 + 25 = 23\,025\).
  2. \(7\,050 - 7\,000 = 50\).
  3. \(69\,875 - 800 - 70 = 69\,075 - 70 = 69\,005\).
  4. \(18\,000 + 350 = 18\,350\).
  5. \(6\,080 - 6\,000 = 80\).
  6. \(43\,546 - 40\,000 - 40 = 3\,546 - 40 = 3\,506\).
  7. \(37\,000 + 480 = 37\,480\).
  8. \(8\,090 - 8\,040 = 50\).
  9. \(93\,648 - 3\,000 - 8 = 90\,648 - 8 = 90\,640\).