German crossword

1234567891011121314151617
Across
  1. 3. the 10th month
  2. 7. 2nd month
  3. 10. 99+1
  4. 11. number of of suns
  5. 13. the day before sonntag
  6. 15. 3+18
  7. 17. 2+2
Down
  1. 1. 4+4
  2. 2. 21+1
  3. 4. 10 numbers before 13
  4. 5. 5+1
  5. 6. 3+6
  6. 8. the day after sonntag
  7. 9. 6x10
  8. 12. the day after samstag
  9. 14. the 1st month of the year
  10. 16. 1 number before einwundzwanzig