Number System

12345678
Across
  1. 2. Decimal expansion of Irrational numbers is ______.
  2. 4. Collection of numbers like 21/10
  3. 6. Number of rational or irrational numbers between two numbers
  4. 7. This collection of numbers contains numbers like 0.10040004....
Down
  1. 1. Decimal expansion of 99/2 is______.
  2. 3. Collection of numbers like 0.104100410004......
  3. 5. Each point on the number line stands for a ______ real number
  4. 8. 21