Definition of arithmetic
1a : a branch of mathematics that deals usually with the nonnegative real numbers including sometimes the transfinite cardinals and with the application of the operations of addition, subtraction, multiplication, and division to themb : a treatise on arithmetic
2 : computation, calculation
Examples of arithmetic in a Sentence
a software program that will do the arithmetic for you
I haven't actually done the arithmetic yet, but I suspect we're losing money on the deal.
Origin and Etymology of arithmetic
Middle English arsmetrik, from AngloFrench arismatike, from Latin arithmetica, from Greek arithmētikē, from feminine of arithmētikos arithmetical, from arithmein to count, from arithmos number; akin to Old English rīm number, and perhaps to Greek arariskein to fit
First Known Use: 15th century
Other Mathematics and Statistics Terms
ARITHMETIC Defined for English Language Learners
arithmetic
playDefinition of arithmetic for English Language Learners

: a branch of mathematics that deals with numbers and their addition, subtraction, multiplication, and division

: the act or process of calculating a number
ARITHMETIC Defined for Kids
arithmetic
playDefinition of arithmetic for Students
1 : a science that deals with the addition, subtraction, multiplication, and division of numbers
2 : an act or method of adding, subtracting, multiplying, or dividing
arithmetic
\ˌerithˈmetik\ orarithmetical
\tikəl\ adjectiveLearn More about arithmetic

See words that rhyme with arithmetic Thesaurus: All synonyms and antonyms for arithmetic Spanish Central: Translation of arithmetic Nglish: Translation of arithmetic for Spanish speakers Britannica English: Translation of arithmetic for Arabic speakers Britannica.com: Encyclopedia article about arithmetic
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