noun
The definition of arithmetic refers to working with numbers by doing addition, subtraction, multiplication, and division.
An example of arithmetic is adding two and two together to make four.
arithmetic
- the science or art of computing by positive real numbers, specif. by adding, subtracting, multiplying, and dividing
- knowledge of or skill in this science: her arithmetic is poor
Origin of arithmetic
Middle English arsmetrike from Old French arismetrique (infl. in form by Classical Latin ars metrica, the art of measurement) from Classical Latin arithmetica from Classical Greek (h?) arithm?tik? (techn?), (the) counting (art) from arithm?tikos, arithmetical from arithmein, to count from arithmos, number of, based on, or using arithmetic
also ar·ith·met′i·cal
arithmetic
noun
The mathematics of integers, rational numbers, real numbers, or complex numbers under addition, subtraction, multiplication, and division.
adjective
ar·ith·met·ic also ar′ith·met′i·cal- Of or relating to arithmetic.
- Changing according to an arithmetic progression: The increase in the food supply is arithmetic.
Origin of arithmetic
Middle English arsmetike from Old French arismetique from Medieval Latin arismetica alteration of Latin arithmētica from Greek arithmētikē (tekhnē) (art) of counting feminine of arithmētikos from arithmein to count from arithmos number ; see ar- in Indo-European roots.Related Forms:
- ar′ith·met′i·cal·ly
adverb
- a·rith′me·ti′cian
noun
arithmetic
Noun
(uncountable)
- The mathematics of numbers (integers, rational numbers, real numbers, or complex numbers) under the operations of addition, subtraction, multiplication, and division.
Adjective
(not comparable)
- (mathematics) Of, relating to, or using arithmetic; arithmetical.
- arithmetic geometry
- (arithmetic) Of a progression, mean, etc, computed solely using addition.
- arithmetic progression
Origin
From Middle English arsmetike, from Old French arismetique, from Latin arithmetica, from Ancient Greek ἀριθμητική (arithmētikē, “counting”) (τέχνη (tekhnē, “art”)), from ἀριθμός (arithmos, “number”). Used in English since 13th Century.