Ответ:

  1. 593 = 500 + 90 + 3.
  2. 375 = 300 + 70 + 5.
  3. 307 = 300 + 7.
  4. 403 = 400 + 3.
  5. 650 = 600 + 50.
  6. 190 = 100 + 90.