WikiCards · Card list · Science cards · Commutative property
Uncommon card · Science
Commutative property, an Uncommon card
In mathematics, a binary operation is commutative if changing the order of the operands does not change the result.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 61
- DEF
- 48
- Power
- 109
- Wikipedia reads a year
- 67,000
Power 109 (ATK + DEF): stronger than 60 % of WikiCards cards.
Commutative property quiz: 3 questions
Three questions on the Commutative property card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is a ______ property of many binary operations, and many mathematical proofs depend on it.
Answer
fundamental. It is a fundamental property of many binary operations, and many mathematical proofs depend on it. From the Commutative property article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Poker. Poker 420,000 · Dik-dik 330,000 · Commutative property 67,000 · Ochrogaster 2,300 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- It is a fundamental property of many binary operations, and many mathematical proofs depend on it.
- Perhaps most familiar as a property of arithmetic, e.g. "3 + 4 = 4 + 3" or "2 × 5 = 5 × 2", the property can also be used in more advanced settings.
- The name is needed because there are operations, such as division and subtraction, that do not have it, such operations are not commutative, and so are referred to as noncommutative operations.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Commutative property article was read about 67,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 61 and blocks with 48: each hit it takes is cut by 19 %.
How to get Commutative property
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Commutative property in the power ranking, all domains together.
- JezebelUncommon · Arts · ATK 62 DEF 47
- Bar-KaysUncommon · Arts · ATK 64 DEF 45
- Nicknames of New York CityUncommon · History · ATK 64 DEF 45
- TableUncommon · Society · ATK 64 DEF 45
- CarbideUncommon · Science · ATK 61 DEF 48
- Lee Jong-suk filmographyUncommon · Society · ATK 63 DEF 46
Card lists
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Credits
Text : Wikipedia, Commutative property (revision), CC BY-SA 4.0. Photo : File:Commutativity of binary operations.svg : Talonnn derivative work: Stephan Kulla ( Use, CC0, Wikimedia Commons.

