The Language of Algebra Vocabulary

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numerical expression

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A math phrase that contains numbers and operations

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translate

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To change a verbal phrase into a numerical expression.

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evaluate

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To find the numerical value of an expression.

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Order of Operations

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Rules to follow when evaluating an expression with more than one operation

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algebra

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The branch of mathematics that uses variables

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variable

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A letter used to represent an unknown value.

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algebraic expression

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A math phrase that contains at least one variable and at least one mathematical operation.

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Substitution Property of Equality

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A rule that states that if 2 quantities are equal, then one quantity can be replaced by the other.

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properties

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Statements that are true for any numbers.

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Commutative Property

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The ORDER in which numbers are added or multiplied does not change the sum or product.