For the same reason Brits can't spell "humor" (humour?) right... Surely you realize (realise?) our languages are similar, but different. "Cheque" out the link below for a list of common spelling variations.
They spell it as metre, you are right :)
you spell it different
Americans spell it "centimeters".
How else are you meant to spell it!
One million six hundred thousand pounds only. (the addition of only on a cheque means there is nothing after the figures as written).
they spell it RESTERANT
Ummm, lets see. Y - E - S.
They spell it the same way Americans do.
Center.
yes you spell right
It depends which Americans you are referring to. There are many countries in America.
your answer is right this is how you spell it