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en.wikipedia.org/wiki/Order_of_operations

In mathematics and computer programming, the order of operations (or operator precedence) is a collection of rules that reflect conventions about which ...

www.purplemath.com/modules/orderops.htm

Explains the order of operations ('PEMDAS' or 'BODMAS') in plain terms, points out common mistakes, and presents worked examples of simplifying by applying  ...

www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

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

www.eduplace.com/math/mathsteps/4/a/index.html

The Order of Operations. When children initially learn addition, subtraction, multiplication, and division, they begin by performing operations on two numbers.

www.mathsisfun.com/operation-order-pemdas.html

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

www.mathgoodies.com/lessons/vol7/order_operations

We need a set of rules in order to avoid this kind of confusion. Mathematicians have devised a standard order of operations for calculations involving more than  ...

www.homeschoolmath.net/worksheets/order_of_operations.php

Find here an unlimited supply of worksheets for the order of operations for grades 2-9 that use addition, subtraction, multiplication, division, exponents, and/or ...

www.math-aids.com/Order_of_Operations

These Order of Operations Worksheets are perfect for teachers, homeschoolers, moms, dads, and children looking for some practice in solving problems using ...

www.brainpop.com/math/numbersandoperations/orderofoperations

Sometimes order matters! In this BrainPOP movie, Tim and Moby introduce you to the order of operations that you should use when solving a math problem.