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PEMDAS is an acronym for the words parenthesis, exponents, multiplication, division, addition, subtraction. Given two or more operations in a single expression, the order of the letters in PEMDAS tells you what to calculate first, second, third and so on, until the calculation is complete.What does PEMDAS mean in math?
PEMDAS is an acronym for the order in which operations are performed in a mathematical expression: parentheses, exponents, multiplication, division, addition and subtraction. If there are parentheses, that operation is completed first. Any exponents are taken care of next.Does PEMDAS apply without parentheses?
Without parentheses, PEMDAS rules imply that you must do division first. With parentheses, the 3x now becomes a group. Multiplication technically must occur before division (but you can still do algebraic simplifications, like cancelling a common factor).