Carlos's Crazy Crossword

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Across
  1. 1. Number of months in a year
  2. 3. Number of letters in the Italian alphabet
  3. 4. The first prime number
  4. 6. Number of days in a week
  5. 9. 50 + 25
  6. 10. Number of hours in a day
Down
  1. 2. Half of 100
  2. 5. Number of days in February during a non-leap year
  3. 7. Number of continents on Earth
  4. 8. The number of years in a decade