Peta 3.1 - Cross Factorial puzzle

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