Numbers

123456789101112131415
Across
  1. 3. First number to start with an h
  2. 5. The base of an ancient number system
  3. 6. alternate way to say zero
  4. 8. Bigger than any number
  5. 10. ---- numbers are numbers that can be expressed as the ratio of integers
  6. 11. Opposite sides of a die always add to -----
  7. 12. 10^100
  8. 15. The ------- point
Down
  1. 1. Million, billion, trillion, -----------
  2. 2. Additive identity
  3. 4. Half of something, in percents
  4. 7. 60/3-15
  5. 9. The base of many number systems that are currently in use
  6. 13. Multiplicative identity
  7. 14. Hexagons have --- sides