Please (parentheses)
Excuse (exponents)
My (multiplication)
Dear (division)
Aunt (addition)
Sally (subtraction)
*multiplication and division can be switched
*addition and subtraction can be switched
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In mathematics parenthesis must be used when the procedures do not follow the normal order of operations.
Grouping symbols are parentheses such as {}, (), []. They need to be evaluated before other operations. If there are a number of nested parentheses, they must be evaluated starting with the innermost.
I believe you mean mathematics.
+,-,*/, are the four fundamental operations
Division, multiplication, addition and subtraction.