the hunt puzzle

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Across
  1. 3. 629994+941391
  2. 5. 800792 round to 1000000
  3. 6. 143038+120283
  4. 7. 426664+494435
  5. 9. 300000+9000+200+30+9
  6. 10. 763678 round to 100000
  7. 13. 2000000+6oo+70+8
  8. 16. one million
  9. 18. 800000+90000+200+20+8
  10. 19. 246992-263870
  11. 20. 400000+90000+8000+500+80+6
Down
  1. 1. 218743-122008
  2. 2. 800000+1000+100+70+9
  3. 4. 500000+30000+4000+600+10
  4. 8. one million eight
  5. 11. one million twenty two
  6. 12. 860000 round to 100000
  7. 14. 100000+600+70+7
  8. 15. 800000+40000+8000+600+70+2
  9. 17. 289438-183665