Math

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Across
  1. 2. 22-33
  2. 5. -7+-3
  3. 7. 144 divided by 12
  4. 9. 10+-5
  5. 12. 21--2
  6. 14. 81 divided by -9
  7. 16. 9-11
  8. 17. 5-3
  9. 18. 11-2
Down
  1. 1. -6--3
  2. 3. 200 divided by 10
  3. 4. -9+-4
  4. 6. 17--11
  5. 8. -3+9
  6. 10. 12+-3
  7. 11. 20-3
  8. 13. 9--3
  9. 15. -22+22
  10. 19. 120 divided by -10