DQ1 Studying the order of operations and the laws of operations are essential before one starts solving an equation because the order of operations tells one the correct order to perform operations when grouping symbols are not available. Sometimes equations contain no grouping symbols to make the expressions look simpler. Without knowing the correct order one will not be able to correctly solve the equation. According to our textbook, Elementary and Intermediate Algebra, a helpful aid to remember the correct order of operations is to remember the phrase “Please Excuse My Dear Aunt Sally” (PEMDAS). PEMDAS stands for the order of operations which is first parentheses, then exponents, multiplication and division, and then addition and subtraction. Multiplication and division have equal priority and can be done in any order as well as addition or subtraction. One needs to remember to do operations from left to right. Having this
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