Expressions Vocabulary

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Exponent

Back

The number that indicates how many times the base is used as a factor.

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Base

Back

When a number is raised to a power, the number that is used as a factor is the base number. Read as base to the exponent power, like “10 to the 9th power”.

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Variable

Back

A symbol used to represent a quantity that can change.

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Numerical Expression

Back

A mathematical phrase that consists of numbers and operation symbols.

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Algebraic Expression

Back

A mathematical phrase that contains at least one variable.

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Evaluate

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To find the value of a numerical or algebraic expression.

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Coefficient

Back

The number that is multiplied by the variable in an algebraic expression.

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Constant

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A value that does not change.

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Term

Back

The parts of an expression that are added or subtracted.

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Like Terms

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Terms with the same variables raised to the same exponent.