We have to use the order of operations so everyone solves a problem the same.
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We use the order of operations as a method of solving mathematical equations containing three or more operation symbols. The order of operations help us to solve certain segments of the equation before adding it all together to find out what the final answer is.
It means that the calculator can follow the order of operations and do the order of operations for you but, you need to know how to do them on your own too.
If you put in parentheses, you can change the order of operations in many cases, as parentheses come before everything in the order of operations.
If you are speaking of Algebra, the order of operations is know as PEMDAS P=PARENTHESE E=EXPONETS M=MULTIPLY D=DIVIDE A=ADD S=SUBTRACT In order to solve an equation you must use this operation, if not you will not get the answer.
pemdas