Looking at the symbols, we can determine this:
Wait – it’s not 22? Why? How?
To be able to correctly solve this Algebra question, you must know the Order of Operations. In grade school, you may remember having learned the phrase, “Please Excuse My Dear Aunt Sally.”
This stands for the correct precedence (which one you do first) of each operation. As a friendly reminder, PEMDAS stands for: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction.
I knew you knew that. I didn’t have to Google it either (lies).
So to correctly solve this problem, we don’t go from left to right, but rather, multiply the 10×2 first, then add the 1.
So there you have it. Now share this with a friend and see if they are wearing their smarty pants today.