Order of Operations - The Basics

This video introduces the order of operations and provides several examples.

[heatherblackie]

Hey Professor Sousa! I am not sure if you remember me, but I used to be a student of yours from 2019-2021. My name is Heather Blackie. I was hospitalized in 2021 for Covid and I unfortunately had withdrawal from your class. I just wanted to thank you for always being a great professor. I am now working on my masters in Homeland Security and currently work as an adult education coordinator. I work with a Native American tribe in Colorado and I teach! My students use your videos! I hope all is well.

[alvinparkinson]

Thanks. expressing these mathematical laws towards the order of operations really help me understand the logic to the computation for each problem.

[GStudios.]

ur the best mathispower4u. Ur vids are so easy to understand

[KcYoung-jbwl]

Question. If you multiplied and divided on the same line at once 5*2 and 12/3 (example 4) then when you got to 3+16-10+4 why did you not add and subtract at the same time? I did 19-14 and got 5 ?

[basilkhan]

Dr. James. I want to discuss something. I researched on PEMDAS and realized that this is not really a very good rule all the time. 1. I realized that using brackets is way more clearer in mathematical expressions. 2. Also I realized that expressing subtraction as addition of negative numbers is more clearer (8+(-2) instead of 8-2). 3. And I realized that PEMDAS was just a way to make things easier and a way to avoid brackets. Is this true? And is this also true that using brackets instead of PEMDAS is much better?