Order of Operations: Using PEMDAS to Simplify Expressions
Using the order of operations (PEMDAS) is a very important skill for any math student starting in pre-algebra. Take the time to learn this skill well since you’ll be using it in nearly every math problem you do!
PEMDAS tells us the order in which to simplify an expression. There are four steps.
- Parentheses — this includes all grouping symbols such as brackets and absolute value.
- Multiplication and Division — do these from left to right.
- Addition and Subtraction — also do these from left to right.
In the video I explain how the order of operations works, why we use it, and go over four helpful examples. Take a look for yourself, or share it with a classmate who could benefit.
-Katie, the online math tutor