Ordinal numbers

123456789101112
Across
  1. 2. one
  2. 4. five
  3. 7. twenty-three
  4. 10. thirty-one
  5. 11. three
  6. 12. seven
Down
  1. 1. six
  2. 3. two
  3. 5. four
  4. 6. fifteen
  5. 8. twenty
  6. 9. nine