Real numbers crossword

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Across
  1. 3. The product of two rational numbers is ___.
  2. 5. The product of a rational and an irrational number is ___.
  3. 6. Zero along with all natural numbers are together called ___ numbers.
  4. 8. All integers can be expressed as ___.
  5. 9. All rational and irrational numbers are called ___ numbers.
Down
  1. 1. all numbers from(…-2,-1,0,1,2…) are called ___.
  2. 2. Real numbers whose decimal expansion are non-terminating and non-recurring are known as ___ numbers.
  3. 4. The natural numbers which are divisible by 1, itself and any other numbers are called ___ numbers.
  4. 7. Counting numbers are called ___ numbers.