Maths

123456789
Across
  1. 1. 22/7 is a ______ number
  2. 4. Identity used in the denominator when rationalizing numbers
  3. 6. Amount of numbers present between any two rational numbers
  4. 8. Rational numbers are either terminating, or ------
  5. 9. √a*√b
Down
  1. 2. (√a+√b) (√a-√b)
  2. 3. Symbol used to represent integers (i.e. Z) comes from what word
  3. 5. One rational number between 2 and 3
  4. 7. √2 is an ______ number