Order of Operations (PEMDAS) Calculator
Use this free order of operations calculator to evaluate an arithmetic expression using PEMDAS. Type an expression with parentheses, exponents, and the four operations, and the tool simplifies it one step at a time.
PEMDAS
Parentheses, Exponents, Multiplication and Division (left to right), then Addition and Subtraction (left to right). The calculator follows this order exactly and shows the expression shrinking step by step.
What it accepts
Use + − × ÷ (or * /), ^ for exponents, parentheses, decimals, and negative numbers.
Frequently asked questions
What does PEMDAS stand for?
Parentheses, Exponents, Multiplication/Division, Addition/Subtraction — the order in which operations are performed.
Do multiplication and division come in a fixed order?
No — they have equal priority and are done left to right, as are addition and subtraction.
Can it handle parentheses and exponents together?
Yes — it evaluates innermost parentheses first, then exponents, then the rest, showing every step.
Read the full lesson: learn the method step by step.
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