Pranav Gaddipati's crossword puzzle

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Across
  1. 6. -10000x(-3
  2. 7. 2,000,00÷2
  3. 8. -10000x(-2)
  4. 12. -1000000x(-2)
  5. 14. -100000x(-8)
  6. 18. 100001+(-1)
  7. 19. 101+(-1)
Down
  1. 1. 8x1000
  2. 2. -100x(-2)
  3. 3. 1000x3
  4. 4. -500x(-2)
  5. 5. 1x2
  6. 9. 1x8
  7. 10. -1000x(-2)
  8. 11. 1,000,000 x 8
  9. 12. 2700÷3
  10. 13. -100x(-8)
  11. 15. 1,000,000x3
  12. 16. 100÷100
  13. 17. 9÷3