Tricky 'W' and 'Qu'

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Across
  1. 4. used inside wheels
  2. 6. numbered in a book
  3. 8. a period of time
  4. 10. put at the top of your work
Down
  1. 1. not expected
  2. 2. sport competitor
  3. 3. the month that Valentine's Day occurs
  4. 5. do this to stay healthy
  5. 7. not a fraction or decimal
  6. 9. words that sound the same