Xword Matemáticas Challenge! x40

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Across
  1. 4. twenty-seven
  2. 6. 11 x tres = ?
  3. 9. "thirty and eight"
  4. 16. a dozen
  5. 17. the last of the teens
  6. 18. 11 x siete = ?
  7. 20. cuatro x ocho = ?
  8. 21. ten and six = ?
  9. 22. once x 2 = ?
  10. 23. eighty-eight
  11. 24. not quite treinta
  12. 25. 3/4 of cien = ?
  13. 28. twenty + cinco = ?
  14. 30. the year of the gold rush, and San Francisco's NFL football team (The blankety-blank-ers)
  15. 32. veinte x cuatro = ?
  16. 33. "thirty and one"
  17. 34. voting age
  18. 35. they call this age "over the hill" (Hint: 4 decades)
  19. 37. once x cinco = ?
  20. 38. 70 minus cuatro = ?
  21. 39. the number right before ochenta
Down
  1. 1. diez x seis = ?
  2. 2. Black-jack!
  3. 3. siete decades would be how many years?
  4. 5. cien minus tres = ?
  5. 7. unlucky for some
  6. 8. "sixty and two"
  7. 10. "eighty and four"
  8. 11. 30 - cuatro = ?
  9. 12. diez x tres = ?
  10. 13. eleven
  11. 14. eighteen + diez = ?
  12. 15. Roman numeral XX = ? (hint: X=10)
  13. 19. 3 x 5 = ?
  14. 26. "ninety and five"
  15. 27. sixty minus nine = ?
  16. 28. 2 x 12 = ?
  17. 29. cien minus uno = ?
  18. 31. forty-four
  19. 36. ? + 3 = 20