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Order of Operations Calculator
Evaluate expressions following PEMDAS / BODMAS rules.
Enter values to see your result
Frequently asked questions
PEMDAS vs BODMAS?
Identical concept, different acronym. P = B (brackets/parentheses). E = O (exponents/orders). Same order of precedence.
3 + 4 × 2 — why 11 not 14?
Multiplication before addition. 3 + (4×2) = 3 + 8 = 11. Left-to-right only applies within same precedence level.
6 ÷ 2(1+2) — is it 1 or 9?
Ambiguous. Modern convention: 9 (treat as 6 ÷ 2 × 3). Best practice: use explicit brackets.
Nested parentheses?
Evaluate innermost first. ((3+2)×4) = (5×4) = 20.