American money is composed of coins and paper bills. The most common coins are the penny, nickel, DIME, and quarter. The penny is worth one CENT, the nickel is worth five cents, the DIME is worth ten cents, and the quarter is worth twenty-five cents. The most common paper bill is the one dollar bill, but there are also two, five, ten, twenty, fifty, and one hundred dollar bills. The term 'BUCK' is a slang term for a one dollar bill, 'DIME' is a slang term for a ten dollar bill, and 'CENT' is a slang term for a one CENT coin.