Crosword Number

12345678910
Across
  1. 4. 13 this is number?
  2. 6. The number before twelve is?
  3. 7. 17 this is number?
  4. 10. The number after eleven is?
Down
  1. 1. The number before sixteen is?
  2. 2. The number after thirteen is?
  3. 3. The number before twenty is?
  4. 5. ten plus ten is?
  5. 8. Twenty minus two is?
  6. 9. 16 this is number?