Number Bases

123456789
Across
  1. 3. Base 8
  2. 5. Base 7
  3. 7. Base 9
  4. 9. Base 3
Down
  1. 1. Base 4
  2. 2. Base 2
  3. 4. Base 6
  4. 6. Base 5
  5. 8. Base 10