Decimal system may refer to:
Decimal (base ten) number system, used in mathematics for writing numbers and performing arithmetic Dewey Decimal System, a subject classification system used in libraries Decimal currency system, where each unit of currency can be divided into 100 (or 10 or 1000) sub-units Decimal measurement system, see decimalization
See also
Metric system Decimal point Positional notation with decimal points
Decimal (disambiguation)