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Ad·di·tion

/əˈdiSHən/

noun
- 1. the action or process of adding something to something else: "the hotel has been extended with the addition of more rooms" Similar inclusionaddingadding inincorporationintroductioninsertion
- ▪ a person or thing added or joined, typically in order to improve something: "you will find the coat a useful addition to your wardrobe" Similar supplementappendageadjunctaddendumadd-onextraaccompanimentextensionriderincreaseincrementaugmentation
- 2. the process or skill of calculating the total of two or more numbers or amounts: "she began with simple arithmetic, addition and then subtraction" Similar adding upcountingtotalingcomputationcalculationreckoningtallyingsummationinformal:totting upinformal, dated:casting up
- ▪ the process of combining matrices, vectors, or other quantities under specific rules to obtain their sum: "the concepts of vectors and vector addition"
Word Origin late Middle English: from Latin additio(n-), from the verb addere (see add).
Scrabble Points: 10
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Addition
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Arithmetic operation
Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or sum of those values combined. The example in the adjacent image shows two columns of three apples and two apples each, totaling at five apples. This observation is equiva... Wikipedia
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