Did you know the Sumerians were the first people to develop their own number system? Numbers have been around for nearly 5000 years. And as time has passed we have made more advances in the field of mathematics. We also must develop our understanding beyond the basic functions. Let us get started!

- General Form of Numbers
- Forming the Number from Given Digits
- Comparing Numbers
- Roman Numbers
- BODMAS Rule
- Operations on Numbers
- Estimation

**Question.** Explain the four types of number system?

**Answer.** The number system has four important types. Furthermore, these four types are decimal, binary, octal, and hexadecimal. In order to gain a proper understanding, one must know the base belonging to the particular number system.

**Question.** What is the number system in the field of mathematics?

**Answer.** A number system refers to a system of writing for the purpose of expressing numbers. Furthermore, number system is the mathematical notation for representing a given set’s numbers by making use of the digits or other symbols in a consistent manner.

**Question.** How many digits are applied in binary number system?

**Answer.** In mathematics, a binary number is a number whose expression takes place in the base-2 numeral system. This number system makes use of only two symbols: “0” (zero) and “1” (one). The base-2 numeral system happens to be a positional notation and has a radix of 2. Each digit is referred to as a bit in the binary number system.

**Question.** What do you understand by the hexadecimal number system?

**Answer.** The hexadecimal number system is a number system that comprises of 16 symbols. As such it has a base 16.