Peta 3.1 Cross Factorial Puzzle

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Across
  1. 2. (9!+4!)=
  2. 3. (7!+2!)=
  3. 6. (6!×1!)²=
  4. 8. 11×(52+3)−5=
  5. 11. (142×15)−(22+20)=
  6. 12. (5!×4!)=
  7. 13. (9!+6!)=
  8. 16. (9!÷7!)=
  9. 17. 152×(18+9)−19=
  10. 19. 82×2−14−12=
  11. 20. (8!×2!)=
Down
  1. 1. (9!-5!)=
  2. 4. (8!×3!)=
  3. 5. (7!÷3!)=
  4. 7. (8!-4!)=
  5. 9. (10!-8!)=
  6. 10. (8!÷4!)=
  7. 14. (10!+9!)=
  8. 15. (3!÷8)=
  9. 18. (7!-3!)=