explain this to me please!!!

ok lets say right now

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1.00 CAD Canada Dollars = 0.814536 USD United States Dollars

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if the "0.814536 USD United States Dollars" is low then you buy and
if the "0.814536 USD United States Dollars" is high then you sell and make a profit right?

errr. yes, buy low sell high

i dont think normal value is 1 cad to 1 usd though

one more thing uhh to forex can u do it in bills? and stuff? because there's this little booth in the shopping center i know its forex something

na canadian dollars are worth slightly less than american dollars, i was getting 220 canadian dollars for 200 american dollars.