Numbering

• A number system defines a set of values used to represent a quantity.
• Assigning a number to a object to identify or indicate that object in a series.
• Numbers are always written to the left.

Rules of numbering

• Using the comma in large number.
• Don’t start a sentence with a numeral.
• Centuries and decades should be spelled out.
• If the number is rounded or estimated, spell it out.
• Two numbers next to each other can't be write one number should write in numerals.
• Ordinal numbers and consistency.

Types of number system

• decimal number system





• Binary number system





• Octal number system





• Hexadecimal number system

Examples