Ответ:

  1. \(7\times9=63\)
  2. \(72:9=8\)
  3. \(3\times9=27\)
  4. \(9\times9=81\)
  5. \(8\times9=72\)
  6. \(81:9=9\)
  7. \(6\times9=54\)
  8. \(63:9=7\)
  9. \(10\times9=90\)