One short math problem set the internet ablaze this weekend—and incited charged arguments on math teacher Twitter, too.

A tweet has gone viral with users debating in the comments over the math used to solve a basic algebra question.

As it turns out many people around the world are taught order of operations in math as children using BODMAS rather than PEMDAS. If you were taught math using BODMAS, you probably solved the ...

To help students in the United States remember this order of operations, teachers drill the acronym PEMDAS into them: parentheses, exponents, multiplication, division, addition, subtraction.

Viral math equations have been known to divide people on the internet. Some problems are so mind-bogglingly hard that they seem impossible, even if they're meant for elementary school students.