subtraction

American  

[suhb-trak-shuhn] / səbˈtræk ʃən /

noun

• subtractions
  plural

1. an act or instance of subtracting.

2. Mathematics. the operation or process of finding the difference between two numbers or quantities, denoted by a minus sign (−).

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subtraction British  

/ səbˈtrækʃən /

noun

1. the act or process of subtracting

2. a mathematical operation in which the difference between two numbers or quantities is calculated. Usually indicated by the symbol (–)

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subtraction Scientific  

/ səb-trăk′shən /

1. The operation of finding the difference between two numbers or quantities.

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Other Word Forms

Derived Forms

• nonsubtraction
  noun

Inflected Forms

Nouns

• subtractions
  plural

Etymology

Origin of subtraction

1350–1400; Middle English < Late Latin subtractiōn- (stem of subtractiō ) a withdrawing, equivalent to subtract ( us ) ( see subtract) + -iōn- -ion

Explanation

In math, subtraction is when you take one number away from another number. In other words, the subtraction of two from five gives you an answer of three. In school, subtraction is typically the second operation you learn in arithmetic, after addition. When a problem has you take four apples away from eight apples, that's subtraction. If you see the word minus, or the symbol -, that's also subtraction. The word itself comes from the Late Latin subtractionem, "a drawing back or taking away," from subtrahere, "take away," which combines sub, "from under," and trahere, "to pull."

Example Sentences

See Examples For:

subtraction subtractions

The antidote psychologists prescribe is mental subtraction: deliberately imagining life without what you take for granted.

From The Wall Street Journal ● May 18, 2026

Imports, which are a subtraction in the calculation of GDP, also decreased.

From Barron's ● Feb. 19, 2026

But here’s the catch: Adaptations are primarily about subtraction.

From Los Angeles Times ● Nov. 7, 2025

“Marketplace is undergoing a rationalization, addition by subtraction, as we reduce our exposure while the risk pool stabilizes,” Zubretsky said, according to a FactSet transcript.

From MarketWatch ● Oct. 23, 2025

When I was five and was taught subtraction, 03-01 showed me how to weigh the golden chamber-pot and subtract its weight to determine more easily how much I had passed in the day.

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume I: The Pox Party" by M.T. Anderson

But you know, additions are just as important as subtractions.

From The Wall Street Journal ● May 6, 2026

Norm Eisen, a senior fellow at the Brookings Institution and a legal analyst at CNN, said “the subtractions stand out more than the additions” in Smith’s latest filing.

From Salon ● Aug. 28, 2024

So given those additions and subtractions, what will Becki Ball look like?

From Los Angeles Times ● Mar. 15, 2024

Solving arithmetic problems, even simple subtractions, involves mental representations whose influence remains to be clarified.

From Science Daily ● Mar. 7, 2024

You 'll have to coach me through my declensions and subtractions.

From Tony Butler by Charles James Lever