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

Teachers should steer students away from the popular "Dear Aunt Sally" (PEMDAS) order of operations acronym, says math coach David Ginsburg.

WESTON — The "Survivor Math Challenge" on Sept. 26 was an outdoor event in which teams of students competed with one another to solve order-of-operations math problems before completing a ...

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.