# Quiz

## Convert 100 from hexadecimal to decimal

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### Decimal Number System (Base 10 number system)

The decimal number system is also called as Base 10 number system since it has 10 digits (0,1,2,3,4,5,6,7,8,9).
We use decimal number system for our day to day calculations. The primary reason why we use decimal system for our daily calculations is that we have 10 fingers.
Let’s understand why decimal number system is base 10 with an example.
Let’s take a number 132.
(132)10=(1102)+(3101)+(2100)=(1100)+(310)+(21)=132
Hexadecimal number system (Base 16 number system) works in a similar way.
Example:
(1F)16=(1161)+(F160)=(1161)+(151)=(31)10Thus, 1F in Hexadecimal is equal to 31 in decimal

### Hexadecimal Number System (Base 16 number System)

Hexadecimal number system is one of the widely used number system by computer system designers and programmers. It is also called as base 16 number system because it has 16 digits (In case of decimal number system, it was 10 digits).

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