The order of operations is the set of rules that you use to simplify expressions in math. PEMDAS or “Please Excuse My Dear Aunt Sally” are ways to help you remember the order of operations. The order of operations tells us to simplify expressions following this order: Parentheses (all symbols of inclusion), Exponents (powers and roots), Multiplication/Division (from left to right or divide first), then Addition/Subtraction (from left to right or subtract first).

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