Branch of mathematics that arises from counting, the most basic mathematical operation. Arithmetic encompasses various ways of counting, or manipulating numbers: addition, subtraction, multiplication, and division.
Arithmetic or arithmetics (from the Greek word αριθμός = number) is the oldest and most elementary branch of mathematics, used by almost everyone, for tasks ranging from ...
Over 1700 pages of free online interactive arithmetic lessons, problems and games for grades K-8 ... This Site Contains: Hundreds of pages of Basic Math Skills. Interactive ...