Math Words
Math Words: Equivalence Properties of Equality
The properties of equality are listed with the specific properties exemplified with links.
Math.com
Math.com: The Basics of Algebra: Properties of Real Numbers
Students learn about the properties of real numbers through this algebra resource. A learning tutorial and practice problems to check for comprehension of the math concepts are included.
University of Vienna (Austria)
University of Vienna: Substituting Terms in Terms
Interactive assessment that tests knowledge of substitution properties of equality. Some problems involve substituting values for variables, while some involve substituting expressions for variables.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Some Rules of Algebra
Here is a site that clearly and thoroughly explains many rules of algebra, such as the commutative property and the addition property of equality. There are example problems solved, problems for the student to attempt, and answers to the...
McGraw Hill
Glencoe Mathematics: Quiz on Properties of Equaltiy
This site is a short on line quiz covering the properties of equality. The topics covered include operations and equivalence relations.
CK-12 Foundation
Ck 12: Elem Math: Identifying the Properties of Squares
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems on identifying the properties of squares.
Math Words
Math Words: Transitive Property of Equality
The transitive property is discussed here with an example to exemplify the property.
Other
Sierra College: Elementary Algebra Review Sheet and Common Formulas
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
Illustrative Mathematics
Illustrative Mathematics: 6.ee Equivalent Expressions
In this problem, we have to transform expressions using the distributive, commutative and associative properties to decide which expressions are equivalent. Common mistakes are addressed, such as not distributing the 2 correctly. Aligns...
Math Words
Math Words: Symmetric Property of Equality
The symmetric property is defined and illustrated.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Adding and Subtracting Inequaliites
"Dr. Math" provides an explanation on remembering when inequalities may be added and subtracted. The explanation is in response to a question submitted by a student.
Maths Challenge
Maths challenge.net: Inscribed Rectangle
This is a proof problem, considered a "three star" geometry problem requiring knowledge of proofs and properties of circles to solve this equal area of inscribed polygons problem.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Inequalities
"Dr. Math" responds to a student question about solving inequalities. Within the response, a list of the properties of inequalities is provided. Site by Math Forum
Khan Academy
Khan Academy: One Step Multiplication & Division Equations
Based on our understanding of the balance beam model, we know that that to keep a true equation, we always have to do the same thing to both sides of an equation. But how do we know what to do to both sides of the equation? Learn to...
National Council of Teachers of Mathematics
Nctm: Figure This: Cut the Cake
A math challenge where geometry, measurement, and problem solving meet. Explore the properties of three dimensional shapes when you discover how six friends can equally divide a nine inch square chocolate cake. A one page activity from...
Other
All Elementary Mathematics: Proportionality and Ratio
A brief explanation of the mathematical relationship between ratio, proportion, and proportionality. Examples are included.