Rawan's Number Puzzle

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Across
  1. 1. half of one third
  2. 4. half of one fourth
  3. 5. four hundreds three tens and five ones
  4. 7. the seventh multiple of seven
  5. 8. the current year we're in
  6. 9. the number of seconds in one hour
  7. 10. the tenth multiple of 10
Down
  1. 1. the second multiple of nine
  2. 2. six hundreds four tens and nine ones
  3. 3. the number of minutes in six hours
  4. 4. Rawan's age times 4 and divided by 2
  5. 6. the sum of two thirds and one sixth
  6. 8. the year Rawan was born
  7. 9. four less than five times Rawan's age