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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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 Winter '05
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