One way to also remember the PEMDAS rule is to use the saying "please excuse my dear aunt sally" which creates the same acronym. ... PEMDAS began trending on Twitter on July 23, ...

Many people ignored the rules and solved the equation strictly from left to right, which led to the most common incorrect answer: 3.33. That mistake happens when PEMDAS is overlooked.

Nope, the blame in this case and in countless similar cases I’ve encountered over the years rested squarely with the fictitious Aunt Sally of “Please excuse my dear Aunt Sally” (or PEMDAS ...

By the same rule, many commenters argued that the expression 8÷2(4) was not synonymous with 8÷2×4, because the parentheses demanded immediate resolution, thus giving 8÷8 = 1 again.

Hint: You’ll need to revisit your grade school order of operations lesson – parentheses, exponents, multiplication, division, addition and subtraction (PEMDAS) ­– to solve each row.

After all, he was her SAT coach during the summer of 2005 — reviewing math tips like the mnemonic PEMDAS rule order of operations and building vocabulary through Mad Libs.