Numbers Crossword Puzzle

123456789101112
Across
  1. 5. 100
  2. 8. 4
  3. 9. 20
  4. 11. 12
  5. 12. 14
Down
  1. 1. 1,000
  2. 2. 15
  3. 3. 1,000,000,000
  4. 4. 30
  5. 6. 40
  6. 7. 1,000,000
  7. 9. 10
  8. 10. 11