number system

1234567891011
Across
  1. 2. All natural numbers together with zero and negatives of all natural numbers form the set of _____
  2. 5. The sum of even and odd is always
  3. 7. ______ of a number is one of two equal factors of the number
  4. 8. Product of two even numbers is always ________
  5. 10. The combination of rational and irrational number is called ______
  6. 11. √3 is a _______ number
Down
  1. 1. There are ________ many rational numbers between any two rational numbers
  2. 3. All natural numbers are ________ numbers
  3. 4. Decimal expansion of any rational number is terminating or ________
  4. 6. The number in p/q form
  5. 9. Counting numbers are called _______ numbers