Decimal System The decimal system is the most common number system used by human beings. ■ It is a positional number system that uses 10 as a base to represent different values.Therefore,this number system is also known as base 10 number system. In this system,10 symbols are available for representing the values.These symbols include the digits from 0 to 9.The common operations performed in the decimal system are addition (+) subtraction (-)multiplication (x),and division (/Decimal System ◼ The decimal system is the most common number system used by human beings. ◼ It is a positional number system that uses 10 as a base to represent different values. Therefore, this number system is also known as base 10 number system. ◼ In this system, 10 symbols are available for representing the values. These symbols include the digits from 0 to 9. The common operations performed in the decimal system are addition (+), subtraction (-), multiplication (), and division (/)