Ответ:

  1. 446, 456, 465, 564, 654.
  2. 123, 203, 230, 302, 320.
  3. 789, 798, 879, 897, 987.
  4. 135, 153, 315, 351, 513.
  5. 167, 607, 670, 706, 760.
  6. 284, 428, 482, 824, 842.
  7. 159, 519, 591, 915, 951.
  8. 346, 364, 463, 634, 643.