How much is that ?

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Across
  1. 1. / US currency
  2. 5. / they cost 5 dollars on page 76
  3. 6. / before one
  4. 9. / the red piece of clothing on page number 75
  5. 12. / after ninety nine
  6. 14. / to protect your eyes against the sun
  7. 15. / number os stories in the school
  8. 17. / where you keep your money
  9. 18. / the word on the red sweatshirt on page seventy five
  10. 19. / one hundred divided by 5
Down
  1. 2. / five hundred by two
  2. 3. / Chilean Currency
  3. 4. / between 59 and 61
  4. 7. / footwear for summer
  5. 8. / twenty five plus twenty five
  6. 10. / before 7
  7. 11. / six plus six
  8. 13. / number between seventeen and nineteen
  9. 16. / the number of this unit
  10. 20. / the object that costs 40 dollars on page 76