Aunt Sally Would Be Disappointed
The mnemonic mathematical saying “Please Excuse My Dear Aunt Sally” is quite clear in terms of the order one should complete equations: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. It’s easy to see that the person who came up with this acronym skipped out on getting to know their Aunt Sally very well.
We recommend that they print out this saying and hang it above their mirror so that every time they brush their teeth, they can memorize this helpful saying and remember it for life.