A decimal number is a number that uses the base-10
numbering system. This means that each digit in a decimal number represents a power of 10. For example, the number 1234 is a decimal number because it can be represented as:
In this representation, the first digit (1) represents 1,000 ( ), the second digit (2) represents 200 ( ), the third digit (3) represents 30 ( ), and the fourth digit (4) represents 4 ( ). When you add these values together, you get the decimal number 1234.
In addition to decimal numbers, there are other numbering systems, such as binary and hexadecimal, that are used in computing. However, decimal numbers are the most commonly used numbering system in everyday life and in computing.
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