Spanish numbers

1234567891011121314151617
Across
  1. 3. a septopus
  2. 4. 20-8
  3. 6. first
  4. 8. 20-7
  5. 10. a boys 5th birthday
  6. 12. 5+1
  7. 13. a octopus
  8. 14. the amount of fingers we have
  9. 15. 20-3
  10. 16. 20-5
  11. 17. a pair
Down
  1. 1. three of something
  2. 2. 20-6
  3. 5. the amount of legs a dog has
  4. 7. 20-9
  5. 9. 20-2
  6. 11. 20-1
  7. 14. 20-4