# 1.2: Expressions with One or More Variables

Difficulty Level:

**At Grade**Created by: CK-12Estimated15 minsto complete

%

Progress

**Practice**Expressions with One or More Variables

MEMORY METER

This indicates how strong in your memory this concept is

Practice

Progress

Estimated15 minsto complete

%

Estimated15 minsto complete

%

Practice Now

MEMORY METER

This indicates how strong in your memory this concept is

Turn In

### Notes/Highlights Having trouble? Report an issue.

Color | Highlighted Text | Notes | |
---|---|---|---|

Show More |

algebraic

The word*algebraic*indicates that a given expression or equation includes variables.

Algebraic Expression

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

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

Exponents are used to describe the number of times that a term is multiplied by itself.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.Order of Operations

The order of operations specifies the order in which to perform each of multiple operations in an expression or equation. The order of operations is: P - parentheses, E - exponents, M/D - multiplication and division in order from left to right, A/S - addition and subtraction in order from left to right.Parentheses

Parentheses "(" and ")" are used in algebraic expressions as grouping symbols.substitute

In algebra, to substitute means to replace a variable or term with a specific value.Trapezoid

A trapezoid is a quadrilateral with exactly one pair of parallel opposite sides.### Image Attributions

Show
Hide
Details

Description

Find the value of algebraic expressions.

Learning Objectives

None

Related Materials

Difficulty Level:

At Grade
Sources:

Subjects:

## Concept Nodes:

Date Created:

Sep 26, 2012
Last Modified:

Apr 11, 2016
Vocabulary

None

**Save or share your relevant files like activites, homework and worksheet.**

To add resources, you must be the owner of the Modality. Click Customize to make your own copy.