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The rule is to evaluate terms according the following order of priority:
In UK it is BIDMAS, an acronym for Brackets, Index, Division, Multiplication, Addition and Subtraction.
In US, it is PEMDAS = Parentheses, Exponent, Multiplication, Division, Addition and Subtraction order of the mathematical order of operations."
Note, that multiplication and division have the same priority; also, addition and subtraction have the same priority.
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When can you use MDAS rule?
Whenever evaluating expressions that do not have parentheses (brackets) nor indices.
What is the process for evaluating expressions called?
An algebraic expression is a process for evaluating expressions. Replacing variables with numerals and following a standard order of operations is used for the process.
What is an expression that substitutes numbers for the variables in the expressions?
It is "evaluating".
Arithmetic rules for evaluating expressions and equations?
formula expression
What does evaluating numerical expressions mean?
It means finding the value of the expression.
