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".
In mathematics and computer programming, the order of operations (or operator
precedence) is a collection of rules that reflect conventions about which ...
Order of Operations presented by Math Gooodies. Learn order of operations with
our self-paced instruction.
Explains the order of operations ('PEMDAS' or 'BODMAS') in plain terms, points
out common mistakes, and presents worked examples of simplifying by applying
This example shows the steps and clarifies the purpose of order of operations: to
have ONE way to interpret a mathematical statement.
"Operations" means things like add, subtract, multiply, divide, squaring, etc. ...
Warning: Calculate them in the wrong order, and you will get a wrong answer !
The Order of Operations. When children initially learn addition, subtraction,
multiplication, and division, they begin by performing operations on two numbers.
Play Order of Operations at MathPlayground.com! Use the order of operations to
correctly solve the problems.
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In this educational animated movie about Math learn about parenthesis,
exponents, multiplications, divisions, addition, subtraction, and pemdas.