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decimal number system

decimal number system

3.7
A number system using digits 0 to 9 that counts in tens
  • noun
  • /ˈdɛsɪməl ˈnʌmbər ˈsɪstəm/
  • Specialized
translation icon : sistema de numeración decimal
  • The decimal number system uses ten base digits, starting from 0 up to 9, to represent all possible numbers.

Examples

  • For example, the fraction 1/10 can be represented in a decimal number system as 0.1.

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  • In the decimal number system, each digit's value depends on its position, allowing for easier calculations.

  • Also known as, "0.999 repeating equals exactly 1 in the decimal number system."

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  • When converting fractions to decimal number system, it is often utilized to show their numeric value.

Synonyms

decimal system
vsdecimal number system
  • Specialized
2 3.1

A number system using digits 0–9 where each place is ten times the one to its right

emphasizes base ten place values rather than general counting use
decimal numeration system
vsdecimal number system
  • Specialized
3.9

A way to write numbers using ten digits from zero to nine

is defined as a place value scheme based on powers of ten
decimal notation
vsdecimal number system
  • Specialized
3.4

A system for writing numbers with the digits 0 to 9

is about the place value system rather than only written representation

Surface Forms

Morphology

decimal + number + system

The meaning 'a numeration system based on powers of ten' is directly and transparently derived from combining 'decimal' (based on ten) with 'number' and 'system' — the adjective+noun composition clearly signals a numbering system built on ten. This compositional pattern is cross-linguistically common and follows straightforward English morphology, so a B1 learner who knows the constituent words can infer the meaning.

Etymology

The term decimal number system comes from counting on our ten fingers: decimal means 'ten' and people grouped numbers in tens. That's why this system uses digits 0-9 and is so useful for everyday counting.