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Arithmetic/Subtraction
[[File:Subtraction01.svg|right|thumb|180px|"5&nbsp;&minus;&nbsp;2 = 3" (verbally, "five minus two equals three")]]
[[File:Vertical_subtraction_example.svg|right|thumb|180px|An example problem]]
(contracted; show full)
In mathematics, it is often useful to view or even define subtraction as a kind of addition, the addition of the additive inverse. We can view 7 − 3 = 4 as the sum of two terms: 7 and -3. This perspective allows us to apply to subtraction all of the familiar rules and nomenclature of addition. Subtraction is not associative or commutative—in fact, it is anticommutative and left-associative—but addition of signed numbers is both.

[[Category:Mathematical theorems]]
[[Category:
Elementary mathemaArithmetics]]