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When dealing with fractions, the order of operations states that multiplication or division is performed first, moving from left to right, and is followed by addition or subtractio...

To follow the order of operations in math, first do any calculations that are inside parentheses and take care of exponents and roots. Next, perform all multiplications and divisions, left to right. Then do all additions and subtractions, left to right.
A handy mnemonic for remembering the order of operations is PEMDAS, or "Please excuse my dear aunt Sally".

Order of operations


In mathematics and computer programming, the order of operations (or operator precedence) is a collection of rules that define which procedures to perform first ...

Order of Operations - Math Goodies


Order of Operations presented by Math Gooodies. Learn order of operations with our self-paced instruction.

15 + 5 X 10 -- Without following the correct order, I know that 15+5=20 multiplied by 10 gives me the answer of 200. 15 + 5 X 10 -- Following the order of operations, I know that 5X10 = 50 plus 15 = 65. Some of the m... More »
By Deb Russell, About.com Guide

Introduction to order of operations | Order of ... - Khan Academy


This example clarifies the purpose of order of operations: to have ONE way to interpret a mathematical statement.

Order of Operations - PEMDAS - Math is Fun


Order of Operations - PEMDAS. Operations. "Operations" means things like add, subtract, multiply, divide, squaring, etc. If it isn't a number it is probably an ...

The Order of Operations: PEMDAS - Purplemath


Explains the order of operations 'PEMDAS') in plain terms, points out common mistakes, and presents worked examples.

The Language of Algebra - Order of operations - First Glance


When expressions have more than one operation, we have to follow rules for the order of operations: First do all operations that lie inside parentheses. Next, do ...

Math Forum: Ask Dr. Math FAQ: Order of Operations


What is the correct order of operations? Why use it? What is PEMDAS?

Popular Q&A
Q: How to Use Order of Operations.
A: Instructions. Look for any parentheses and brackets in the equation. Calculate the operations within the parentheses first, and then calculate operations inside... Read More »
Source: www.ehow.com
Q: How to Do Order of Operation
A: First of all the order of operation has a rule that is called PEMDAS. Please excuse my dear aunt sally. Always remember to go from left to right and it goes as ... Read More »
Source: www.ehow.com
Q: How to Apply the Order of Operations
A: 1 Perform any calculations inside the innermost parenthesis (or any other types of grouping symbols) first. Then progress outward. 12 - 8 ÷ 4 + [(6 + 2) - 3] 2 ... Read More »
Source: www.wikihow.com
Q: How to Apply the Order of Operations
A: 1 Perform any calculations inside the innermost parenthesis (grouping symbols in general) first . Then progress outward. 12 - 8 ÷ 4 + [(6 + 2) - 3] 2 •3 12 - 8 ... Read More »
Source: www.wikihow.com
Q: What are the rules for order of operations?
A: Use this anagram to help you remember: BEDMAS. Brackets. Exponents. Division/Multiplication (in the order they appear) Addition/Subtraction (in the order they a... Read More »
Source: wiki.answers.com