CK-12 Foundation
Ck 12: Algebra: Sums and Differences of Single Variable Expressions
[Free Registration/Login may be required to access all resource tools.] Simplify single variable expressions involving addition and subtraction by combining like terms.
Learning Wave Communications
Learning Wave: Algebra, Section 1
This resource covers the basic algebraic concepts of like terms, substitution, solving one- and two-step equations, and using formulas and problem solving. Sample problems and links to application problems are included.
CK-12 Foundation
Ck 12: Algebra: Simplify Sums or Differences
[Free Registration/Login may be required to access all resource tools.] Simplify sums or differences of single variable expressions by combining like terms.
CK-12 Foundation
Ck 12: Algebra: Addition and Subtraction of Polynomials
[Free Registration/Login may be required to access all resource tools.] In this lesson students add and subtract polynomial expressions and simplify polynomials by combining like terms. Students can watch a video tutorial, explore guided...
Oswego City School District
Regents Exam Prep Center: Adding and Subtracting Polynomials
A detailed explanation of polynomials and like terms is followed with many examples of how to add and subtract them. Lessons for the teacher as well as interactive examples for the students provide plenty of opportunities for practice....
CK-12 Foundation
Ck 12: Algebra: Multi Step Equations
[Free Registration/Login may be required to access all resource tools.] Use the distributive property and combining like terms to solve equations
Help Algebra
Help algebra.com: Simplifying Expressions
Learn to simplify expressions using like terms, parentheses. Also learn the best way to work with a negative in the expression.
Khan Academy
Khan Academy: Equivalent Expressions
Practice determining whether or not two algebraic expressions are equivalent by manipulating the expressions. These problems require you to combine like terms and apply the distributive property. Students receive immediate feedback and...
CK-12 Foundation
Ck 12: Algebra: Simplify Expressions
[Free Registration/Login may be required to access all resource tools.] Simplify polynomials by combining like terms.
Wyzant
Wyzant: What Is Simplifying?
This site from WyzAnt explores what simplifying is, as well as how to simplify a variety of algebraic equations. Content focuses on simplifying multiple signs, combining like terms, simplifying multiplication, distributing a number or...
Help Algebra
Help algebra.com: Addition and Subtraction of Polynomials
By collecting like terms, the process of adding and subtracting polynomials is demonstrated. Two methods are shown.
CK-12 Foundation
Ck 12: Algebra: Simplify Expressions
[Free Registration/Login may be required to access all resource tools.] This lesson covers combining like terms.
The Math League
The Math League: Introduction to Algebra
This introduction offers help on a variety of topics in algebra, such as variables, expressions, equations, and simplifying.
Math.com
Math.com: The Basics of Algebra Unit Quiz
The unit quiz consists of eight matching questions that examine algebraic expressions and laws of exponents. Solutions are provided.
Other
Dan's Math: Basic Skills Topics
College professor Dan Bach offers a review of various basic topics in arithmetic, pre-algebra, and algebra. Order of operations, exponents, square roots, variables, and combining terms are just a few of the many topics covered.
Sophia Learning
Sophia: Examining Algebraic Expressions: Lesson 1
This lesson demonstrates how to identify and label different parts of an algebraic expression. It is 1 of 5 in the series titled "Examining Algebraic Expressions."
Sophia Learning
Sophia: Examining Algebraic Expressions: Lesson 2
This lesson demonstrates how to identify and label different parts of an algebraic expression. It is 2 of 5 in the series titled "Examining Algebraic Expressions."
Khan Academy
Khan Academy: Writing Basic Expressions Word Problems
Practice writing basic algebraic expressions to model real-world situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Wyzant
Wyzant: Simplifying Multiple Positive or Negative Signs
Students learn how to simplify multiple positive or negative signs. The resource consists of lessons with examples, a combining like terms calculator, an equation calculator, and a worksheet to check for comprehension.
ClassFlow
Class Flow: Solving Multi Step Equations
[Free Registration/Login Required] By the end of the lesson, students will combine like terms to help understand how to solve multi-step equations. They will use different shapes to help clarify the process. They will also demonstrate...
Alabama Learning Exchange
Alex: Battle to the Death: Adding Integers
The goal of this lesson is for learners to use manipulatives to add integers, creating concepts rather than memorizing rules. This lesson will be related to the 300 Spartans who battled the invading Persians at the Battle of Thermopylae,...
Saddleback College
Algebra2 Go: Prealgebra
The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.
Discovery Education
Discovery Education: Web Math: Multiplying Polynomials
This WebMath interactive site allows students to enter problems and get an answer. It offers tips on how to multiply polynomials.
Khan Academy
Khan Academy: Equivalent Expressions
Practice determining whether or not two algebraic expressions are equivalent by manipulating the expressions. These problems require you to combine like terms and apply the distributive property.