Philippine Science High School Review | Math 3 | Order of Operations | Reviewer for Incoming Grade 7
Channel: MathHub TV
Date: 2022-03-04

In this video lesson, I will discuss the order of operations.  In math, order of operations is the rule that states the sequence in which the multiple operations in an expression should be solved. 
A way to remember the order of the operations is PEMDAS, wherein each letter stands for a mathematical operation.

 P  Parentheses
 E  Exponent
 M  Multiplication
 D  Division
 A  Addition
 S  Subtraction
 
The PEMDAS rules that state the order in which the operations in an expression should be solved, are:

1. Parentheses - They take precedence over all other operators. The first step is to solve all the operations within the parentheses. Work out all groupings from inside to out. (Whatever is in parentheses is a grouping)
2. Exponents - Work out all the exponential expressions. 
3. Multiplication and Division - Next, moving from left to right, multiply and/or divide whichever comes first.
4. Addition and Subtraction - Lastly, moving from left to right, add and/or subtract whichever comes first.

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