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Addition (usually signified by the plus symbol ) is one of the four basic
Addition (usually signified by the plus symbol ) is one of the four basic operations
Operation or Operations may refer to:
Arts, entertainment and media
* ''Operation'' (game), a battery-operated board game that challenges dexterity
* Operation (music), a term used in musical set theory
* ''Operations'' (magazine), Multi-Man ...
of arithmetic
Arithmetic () is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers—addition, subtraction, multiplication, division, exponentiation, and extraction of roots. In the 19th c ...
, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or ''sum
Sum most commonly means the total of two or more numbers added together; see addition.
Sum can also refer to:
Mathematics
* Sum (category theory), the generic concept of summation in mathematics
* Sum, the result of summation, the additio ...
'' of those values combined. The example in the adjacent image shows a combination of three apples and two apples, making a total of five apples. This observation is equivalent to the mathematical expression (that is, "3 ''plus'' 2 is equal
Equal(s) may refer to:
Mathematics
* Equality (mathematics).
* Equals sign (=), a mathematical symbol used to indicate equality.
Arts and entertainment
* ''Equals'' (film), a 2015 American science fiction film
* ''Equals'' (game), a board game
...
to 5").
Besides counting items, addition can also be defined and executed without referring to concrete objects, using abstractions called number
A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words. More universally, individual numbers ...
s instead, such as integer
An integer is the number zero (), a positive natural number (, , , etc.) or a negative integer with a minus sign ( −1, −2, −3, etc.). The negative numbers are the additive inverses of