          # Arithmetic

• arithmetic tables for children, lausanne, 1835

arithmetic (from the greek ἀριθμός arithmos, "number" and τική [τέχνη], tiké [téchne], "art") is a branch of mathematics that consists of the study of numbers, especially the properties of the traditional operations on them—addition, subtraction, multiplication and division. arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. the terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory.

• history
• arithmetic operations
• decimal arithmetic
• compound unit arithmetic
• number theory
• arithmetic in education
## For the song by Brooke Fraser, see Arithmetic (song). Arithmetic tables for children, Lausanne, 1835 Arithmetic (from the Greek ἀριθμός arithmos, "number" and τική [τέχνη], tiké [téchne], "art") is a branch of mathematics that consists of the study of numbers, especially the properties of the traditional operations on them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory. Contents 1 History 2 Arithmetic operations 2.1 Addition (+) 2.2 Subtraction (−) 2.3 Multiplication (× or · or *) 2.4 Division (÷, or /) 3 Decimal arithmetic 4 Compound unit arithmetic 4.1 Basic arithmetic operations 4.2 Principles of compound unit arithmetic 4.3 Operations in practice 5 Number theory 6 Arithmetic in education 7 See also 7.1 Related topics 8 Notes 9 References 10 External links  