Ответ:

  1. \(21900>21829\);
  2. \(201928383>28283939\);
  3. \(36000>35994\);
  4. \(123301<123456\);
  5. \(999999878>999222799\);
  6. \(575757<577555\);
  7. \(38002<380010\).