Topic 2-6 5th Grade Math Vocabulary

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Compatible Numbers

Back

Numbers close in value to the original number but easier to estimate or calculate.

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Difference

Back

The answer to a subtraction problem.

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Equation

Back

A mathematical sentence that uses an equal sign to show that two expressions have the same value.

Front

Expression

Back

A mathematical phrase that contains numbers and/or letters and at least one operation.

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Estimate

Back

To give a close guess.

Front

Inverse Operations

Back

Two operations that undo each other. Example: addition/subtraction.

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Overestimate

Back

The result of using greater numbers to estimate a sum or product.

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Product

Back

The answer to a multiplication problem.

Front

Simplify

Back

Perform all possible operations in an expression.

Front

Strip Diagram

Back

A rectangular model used to show part/part/whole relationships.