**Arithmetic** or arithmetics (from the Greek word ἀριθμός = number) is the oldest and most elementary branch of

mathematics, used by almost everyone, for tasks ranging from simple day-to-day counting to advanced

science and business calculations. It involves the study of quantity

?, especially as the result of combining

numbers. In common usage, it refers to the simpler properties when using the traditional operations of

addition,

subtraction,

multiplication and

division with smaller values of

numbers. (Wikipedia)

**Do computations online with Mathematica's Wolfram/Alpha**
See Also

**Add**
**Addition**
**Division**
**Chord**
**Divide**
**Equals**
**Factoring**
**Geometry**
**Interval**
**law of multiple proportions**
**law of constant composition**
**Law of Definite Proportions**
**Mathematics**
**Minus**
**Multiplication**
**Music**
**Number**
**Proportion**
**Propositions of Geometry**
**Quantum Arithmetic**
**Ratio**
**Stoichiometry**
**Subtraction**
**Sympsionics**
**Times**