arithmetic

Also known as arithmetics

thumb|alt=The main arithmetic operator symbols; from left to right, top to bottom: addition sign +; minus sign −; multiplication sign ×; and division sign ÷.|The main arithmetic operations are addition, subtraction, multiplication, and division.|class=skin-invert-image

AI overview

Arithmetic is the branch of mathematics that deals with the four basic operations—addition, subtraction, multiplication, and division—which form the foundation for working with numbers. These fundamental skills matter because they enable us to perform everyday calculations and solve problems involving quantities in our daily lives.

AI-generated from the Wikipedia summary — may contain errors.

~56 min read

Encyclopedic overview

29 sections

Contents

Definition, etymology, and related fields
Numbers
Kinds
Numeral systems
Operations
Addition and subtraction
Multiplication and division
Exponentiation and logarithm
Types
Integer arithmetic
Number theory
Rational number arithmetic
Real number arithmetic
Approximations and errors
Tool use
Others
Axiomatic foundations
History
In various fields
Education
Psychology
Philosophy
Others
See also
References
Notes
Citations
Sources
External links

Arithmetic is an elementary branch of mathematics that deals with numerical operations like addition, subtraction, multiplication, and division. In a wider sense, it also includes exponentiation, extraction of roots, and taking logarithms.

Excerpted from Wikipedia’s “arithmetic” article, available under the CC BY-SA 4.0 licence.