Ответ:

  1. 659009 + 1 = 659010
  2. 7489999 + 1 = 7490000
  3. 987999 + 1 = 988000
  4. 240000 − 1 = 239999
  5. 600100 − 1 = 600099
  6. 497000 − 1 = 496999
  7. 556999 + 1 = 557000
  8. 765010 − 1 = 765009
  9. 364999 + 1 = 365000