On this page, we’ll explore the Order of Operations, a key math rule that ensures everyone arrives at the same answer when performing calculations.
The Order of Operations is a set of rules that tells us the correct sequence when performing calculations with multiple operations (mixtures of addition, subtraction, multiplication, division, etc.).
Following these rules ensures that everyone gets the same answer every time.
For example:
Since the two methods give different answers, "the order of operations" must be established to ensure everyone knows which steps to perform first. (The order of operations is, therefore, simply a universal agreement that everyone follows.)
Remember "Please Excuse My Dear Aunt Sally (PEMDAS)"
Please compare this example with Example 2.
Each Multiplication and Division (Step 3.) at these 2 places are done before Addition and Subtraction (Step 4.)
Multiplication and Division (Step 3.) is done before Addition and Subtraction (Step 4.) from left to right
Compared to Example 6,
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