In this lesson on order of operations, Mr. Perez introduces the acronym PEMDAS and explains how to use it to compute the values of expressions. He starts with parentheses and other grouping symbols, moves on to exponents, and then to multiplication and division, working left to right. Finally, he covers addition and subtraction, working left to right, whichever comes first. Mr. Perez emphasizes the importance of writing in steps to avoid confusion and retain information.
An introduction to order of operations, what the acronym PEMDAS stands for, and how to use order of operations to compute values of expressions.
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