Important Math Terms

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Key Words Used To Ask Questions

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Key Words Used To Represent Operations

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Cubes Problem Solving Strategy

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Math Reference Sheet: Important Conversions

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Important Calculator Buttons

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“Is My Work Complete?” Checklist

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Types of Errors

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What is a Rational Number?

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Term

Definition

Example

Expression

Combines numbers or letters using one or more mathematical operation without an equal.

9 + 12

12n

Equation

(Number Sentence)

Combines numbers using one or more mathematical operation with an equals or inequality sign.

13 - 6 = 7

8 + n = 19

Equivalent expression

Expressions that have the same numerical value

9 X 4 = 6 x 6

Algorithm

A set of rules for performing a procedure.

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Value

The amount that an expression, variable, or equation is equal to.

18 x 3

Value = 54

Operation

A mathematical process such as adding, subtracting, multiplying and dividing.

+, - , X , /

Rule

A set way to solve a problem. A pattern that is consistent and repeats.

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Term

Definition

Explain

To give facts and details that make an idea easier to understand. Explaining involves a written summary that is often supported by a diagram, chart, table and/or work.

Determine

To use the given information and any related facts to find a value or make a decision

Justify

To support your answers with reason and/or examples.

Describe

To explain or tell in detail.

Compare

To tell or show how two things are alike or different

Summarize

To go over or review the most important points.

Model

To represent a situation or word problem using pictures, diagrams, number sentences.

Estimate

To find an approximate answer that is relatively close to the exact amount.

Simplify

To solve a problem or write an answer in lowest terms.