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

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Color | Highlighted Text | Notes | |
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Term | Definition |
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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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Description

Learn how to write a real world problem as a variable expression and how to evaluate the expression you have written using the order of operations.

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Date Created:

Dec 19, 2012
Last Modified:

Jan 26, 2017
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