Definition

1. Noun:
   • A positional system of numeration that uses decimal digits and a base of ten: The decimal number system is the standard system for denoting integer and non-integer numbers, using ten as its base. It is the most widely used numerical system, employing the ten symbols 0 through 9.

Usage

• The decimal number system is the foundation of modern arithmetic and everyday counting.
• It is used globally for most commercial, scientific, and general purposes.
• When we write a number like 345.67, we are using the decimal number system.

Examples

• Noun:
  • Most countries use the decimal number system for their currency.
  • The invention of the decimal number system was a major advancement in mathematics.
  • Converting from binary to the decimal number system is a common task in computer science.

Advanced Usage

• "base-ten system": A common synonym for the decimal number system, emphasizing the base.
  • Arithmetic is fundamentally based on the base-ten system.
• "decimal notation": Refers specifically to the written symbols of the system.
  • The number is expressed in standard decimal notation.

Variants and Related Words

• Decimal (adj): Relating to or based on the number ten.
  • A decimal point separates the whole number from the fractional part.
• Decimalization (n): The process of converting a currency or system to a decimal basis.
  • The decimalization of the British currency occurred in 1971.
• Decimal digit (n): One of the ten symbols (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) used in this system.
  • The number 507 contains three decimal digits.

Synonyms

• Base-ten system: A system of numbers based on ten.
• Denary system: A less common term for the decimal system.

Related Phrases

• "go decimal": To adopt a decimal-based system, especially for currency.
  • The country decided to go decimal to simplify financial transactions.
• "decimal place": The position of a digit to the right of the decimal point.
  • Round the answer to two decimal places.

Noun

1. a positional system of numeration that uses decimal digits and a base of ten