Number

12345678910111213141516171819
Across
  1. 2. (4) – The fourth number, one more than three. (Note: "Foor" seems to be a typo for "Four.")
  2. 4. (30) – Three sets of ten.
  3. 7. (70) – Seven sets of ten.
  4. 8. (8) – The eighth number, one more than seven.
  5. 9. (40) – Four sets of ten.
  6. 13. (6) – The sixth number, one more than five.
  7. 14. (3) – The third number, representing a group of three.
  8. 16. (11) – The number after ten, made of one and one.
  9. 17. (2) – The second number, representing a pair.
  10. 18. (1,000,000,000) – One thousand sets of one million.
  11. 19. (7) – The seventh number, one more than six.
Down
  1. 1. (100) – Ten sets of ten.
  2. 2. (50) – Five sets of ten.
  3. 3. (9) – The ninth number, one more than eight.
  4. 5. (20) – Two sets of ten.
  5. 6. (1,000) – Ten sets of one hundred.
  6. 10. (1) – The first number, a single unit.
  7. 11. (1,000,000) – One thousand sets of one thousand.
  8. 12. (5) – The fifth number, half of ten.
  9. 14. (10) – The tenth number, the base of our counting system.
  10. 15. (12) – The number after eleven, often used in time (12 hours).