Semester 1 Review (7R)

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6

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7

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-8

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True or False: When solving expressions, you should substitute the given value for each variable and then use the order of operations.

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True

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Define 'Order of Operations' in mathematics.

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The order of operations is a set of rules that determines the sequence in which calculations are performed in an expression, typically remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

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What does 'substitution' mean in the context of evaluating expressions?

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Substitution is the process of replacing a variable in an expression with a specific value to simplify or evaluate the expression.

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2

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-5

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-2