# Mathematical Operations | Operation | Symbol | | -------------- | -------------------------- | | Division | $a \div b$ or $\frac{a}{b}$ | | Multiplication | $a \cdot b$ | | Addition | $a+b$ | | Subtraction | $a-b$ | | [[Logarithms and Exponents]] | $a^b$ | ### Order of Operations **PEMDAS:** **P**arentheses -> **E**xponents -> **M**ultiplication/**D**ivision -> **A**ddition/**S**ubtraction When simplifying an expression, always do the multiplication/division BEFORE the addition/subtraction (from left to right) as stated by the order of operations. ### Terminology of Operations Division: $\text{dividend} \div \text{divisor} = \text{quotient}$ ### Solving One-Step Equations Simply perform the **opposite operation** on both sides of the equation to isolate the variable.