Numeral Systems (Languages)
Numeral is a system that represents a set of numbers, or perhaps it is a language of the numbers. The term numeral differs from a number, in a similar way to languages. For example, the number "9" in Arabic, the word "nine" in English, the number "IX" in Roman, the number in Chinese, and the '9-handshape' in ASL are expressed in different numeral systems (languages), yet they all represent the same number.
The manual numeral is a system of manual numbers. It is used to fingerspell a series of numbers. Like sign languages, manual numerals around the world are not universal. In sign langauges, they have their own signs for the numbers. Some manual numerals are one-handed and some are two-handed systems.