noun

arithmetic

uh-RIHTH-muh-tihk

noun

The branch of mathematics dealing with basic operations on numbers: addition, subtraction, multiplication, and division.

"The kids are learning basic arithmetic in second grade."

"Simple arithmetic shows the plan will cost more than they claimed."

adjective

Relating to, or using, arithmetic.

"The sequence increases by an arithmetic progression, each term adding a fixed amount."

How to Use Arithmetic

Learner’s notes

In plain EnglishBasic number maths — adding, subtracting, multiplying, and dividing.

Easily confused with

arithmetic (adjective, stress on third syllable) vs arithmetic (noun, stress on second)

Common pairings

basic arithmetic mental arithmetic simple arithmetic

arithmetics plural

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The kids are learning basic _____ in second grade.

From Greek arithmetike (tekhne), "(art of) counting," from arithmos, "number."

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