What's with all this Centimetres nonsense! I was taught that the approved ISO unit was the Metre and that you worked in multiples of a thousand ie Kilometers or Milimetres.
You don't get mass expressed as Centigrams you get Miligrams, Grams or Kilograms.
So why do schools insist on using centimetres?
Mind you I still tend to mentally convert to feet and inches, 9/64ths of b*gger all sounds so much better than 3.571875th of b*gger all
