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Grades 5โ€“8CCSS.MATH.CONTENT.5.OA.A.1 โ€ข 6.EE.A.2

Order of Operations (PEMDAS/BODMAS) Step-by-Step

The order of operations guarantees there is only ONE correct mathematical answer to any multi-operator expression. Follow the strict hierarchical precedence: Parentheses, Exponents, Multiplication & Division (Left to Right), Addition & Subtraction (Left to Right).

๐Ÿง  Core Mental Strategies & Shortcuts

1๏ธโƒฃ Parentheses First: ( )

Always evaluate expressions inside parentheses before anything else: 3 ร— (4 + 5) = 3 ร— 9 = 27.

2๏ธโƒฃ Exponents & Powers: xยฒ

Calculate powers next: 2 + 3ยฒ = 2 + 9 = 11.

3๏ธโƒฃ Multiply & Divide from Left to Right

Multiplication does NOT always come before division! Evaluate whichever appears first from left to right: 20 รท 4 ร— 2 = 5 ร— 2 = 10.

โ“ Frequently Asked Questions

What is the difference between PEMDAS and BODMAS?

They are identical rules with regional naming: PEMDAS is used in the US (Parentheses, Exponents), BODMAS is used in the UK/India/Australia (Brackets, Orders).

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Order of Operations (PEMDAS / BODMAS) Rules & Practice (Grades 5โ€“8)

When an algebraic expression contains multiple arithmetic operations, standard precedence rules dictate the exact sequence of calculations. Remembering the acronym PEMDAS (Parentheses, Exponents, Multiplication & Division from left to right, Addition & Subtraction from left to right) guarantees reliable mathematical solutions.

โšก Precedence Hierarchy

1. Parentheses (Brackets)
2. Exponents (Powers & Roots)
3. Multiplication & Division (Equal priority, left to right)
4. Addition & Subtraction (Equal priority, left to right)

๐Ÿšซ The #1 Common Mistake

Calculating strictly left-to-right on 3 + 4 ร— 2. Adding first gives (3 + 4) ร— 2 = 14 (incorrect!). Multiplying first gives 3 + 8 = 11 (correct!).

Need printable classroom PEMDAS sheets or step-by-step guides?

Print PEMDAS Worksheets โ†’PEMDAS Learn Guide โ†’