Squares & Square Roots

In each of the following, which is the bigger value? You will need to use a calculator for some of the more difficult ones!

  1. Which is the greater (a) Ö 81 or (b) 22 ?
 
  2. Which is the greater (a) Ö 196 or (b) 52?
 
  3. Which is the greater (a) Ö 1.44 or (b) 1.12?
 
  4. Which is the greater (a) Ö 12.96 or (b) 1.92?
 
  5. Which is the greater (a) Ö 39.69 or (b) 2.52?
 
  6. Which is the greater (a) Ö 23.04 or (b) 2.22?
 
  7. Which is the greater (a) Ö 10 000 or (b) 9.92?
 
  8. Which is the greater (a) Ö 1 600 or (b) 6.32?
 
  9. Which is the greater (a) Ö 12 100 or (b) 10.52?
 
10. Which is the greater (a) Ö 4225 or (b) 82?
If you make any mistakes, try again!
 

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