Number Magic

Question :
What are Numerals ?

Answer :
Numerals are used to name numbers, in other words, a numeral is a symbol used to represent a number.
For Example,
The number 4 is the name of number four. And again four is the idea that describes any collection of four objects. 4 marbles, 4 books, 4 people, 4 colours, and so on. We recognize that these collections all have the quality of fourness even though they may differ in every other way.
The simplest numeral system is the unary numeral system, in which every natural number is represented by a corresponding number of symbols.