ordinal and cardinal numbers

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Across
  1. 2. The classroom has 64 chairs
  2. 3. The day of the month (ordinal for 12)
  3. 7. The number after thirty-eight
  4. 9. The number before seventy
  5. 13. The person to arrive (ordinal for 1)
  6. 14. The classroom has 43 desks
  7. 15. The student won the prize (ordinal for 21)
  8. 16. The birthday celebration (ordinal for 18)
  9. 17. The number after 33
  10. 18. The runner crossed the finish line (ordinal for 2)
  11. 19. The page is missing (ordinal for 77)
Down
  1. 1. The number before 100
  2. 4. The number after ninety-nine
  3. 5. The number after 89
  4. 6. The student in line(ordinal for 25)
  5. 7. The stop is where we get off (ordinal for 10)
  6. 8. The runner finished in position 43
  7. 10. The book is red (ordinal for 3)
  8. 11. The number before fifty
  9. 12. The classroom has 43 desks