One hundred centimes is equal to ?1 or to one of whatever the base currency is in the country using the centime. In France before the introduction of the euro, 100 centimes was equal to one franc.
In French-speaking countries, the centime is used to represent 1/100th of a unit of currency, just as 1 cent is 1/100th of a U.S. dollar. As for the value of a 100 centimes, compare the currency that the centime represents. If you are not in Europe, it may not be safe to assume that the centime is referring to 1/100th of a euro.