PEMDAS (sometimes referred to as PEMDAS, BEDMAS, BOMDAS or BODMAS) is a mathematical acronym to help you understand how calculations work.
The acronym refers to the order in which any calculation shold be done and applies to Excel because it follows the rules of mathematics.
The acronym stands for the following:
One popular way to remember the PEMDAS rule is the saying:
'Please Excuse My Dear Aunt Sally'.