Order of Operations
The order of operations tells you exactly which part of an expression to do first, so everyone gets the same result. It starts with grouping symbols, then exponents, then multiplication and division, and finally addition and subtraction. This topic is a foundation for algebra, especially once variables and powers enter the picture.
Learning Path
Math: Order of Operations
Practice the standard sequence on expressions that build fluency with parentheses, exponents, multiplication, division, addition, and subtraction.
Open →Order of Operations (PEMDAS) Solver
Enter an expression and see how it is simplified step by step, making the evaluation order easy to follow.
Open →Exponents & Radicals Lab
Try out powers and roots in an interactive setting to see how exponents fit into expression rules.
Open →Order of Operations & PEMDAS
Keep this quick guide handy when you need a fast reminder.
- Do grouping symbols first, including parentheses, brackets, and braces.
- Handle exponents before multiplication and division.
- Work left to right for multiplication/division and for addition/subtraction.
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Common Questions
What does PEMDAS mean?
PEMDAS is a memory aid for the order of operations: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
Why are multiplication and division done left to right?
They have the same priority, so you evaluate whichever comes first from left to right to keep the result unambiguous.