The decimal number system, also referred to as base-10 or Hindu-Arabic numeral system, is a mathematical representation of numbers using 10 different symbols, namely 0 to 9, along with the concept of place value. Each position in a decimal number has a weight or value based on powers of 10. The rightmost position is the units or ones place, the next position to the left is the tens place, followed by the hundreds, thousands, and so on.
The decimal number system is widely used across the globe as a means of counting and representing numerical values. It provides a practical and intuitive representation of numbers for humans, as it aligns with our natural counting system with ten fingers. Decimals allow for precise representation of values by using fractions or ratios of powers of 10.
This system permits the representation of any whole number, positive or negative, as well as fractional numbers and irrational numbers. Decimal numbers can be manipulated mathematically using a range of operations, such as addition, subtraction, multiplication, and division.
The decimal number system serves as the foundation for various fields such as mathematics, finance, science, and everyday calculations. It enables efficient calculation, clear communication, and accurate recording of numerical information.
