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1.5: Connect Variable Expressions and the Order of Operations with Real-World Problems

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

Algebraic Expression

An expression that has numbers, operations and variables, but no equals sign.

Equation

An equation is a mathematical sentence that describes two equal quantities. Equations contain equals signs.

Evaluate

To evaluate an expression or equation means to perform the included operations, commonly in order to find a specific value.

Expression

An expression is a mathematical phrase containing variables, operations and/or numbers. Expressions do not include comparative operators such as equal signs or inequality symbols.

Grouping Symbols

Grouping symbols are parentheses or brackets used to group numbers and operations.

Numerical expression

A numerical expression is a group of numbers and operations used to represent a quantity.

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Difficulty Level:
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Date Created:
Dec 19, 2012
Last Modified:
Jan 26, 2017
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MAT.ALG.142.5.L.3