This site from Washington State University provides properties and rules of addition and multiplication that help with proofs.

The resource consists of a discussion between a mentor and two students about how to use additive and multiplicative identity and inverse properties. Examples and explanations of each are included.

[Free Registration/Login may be required to access all resource tools.] Solve one and two-step equations by using the inverse properties of addition and division

[Free Registration/Login may be required to access all resource tools.] Solve one and two-step equations by using the inverse properties of addition and multiplication

This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.

This resource offers six brief arithmetic lessons: sums less than ten, sums of ten, and sums between ten and twenty, doubling, zero, and a set of general practice problems.

[Free Registration/Login may be required to access all resource tools.] Represent addition, subtraction, multiplication, and conjugation of complex numbers geometrically on the complex plane; use properties of this representation for...

[Free Registration/Login Required] This flipchart is an introduction and application of three principle properties of mathematics. Students will identify and apply the Identity, Commutative, and Associative Properties of addition and...

Here is a nice resource for students and teachers about whole numbers and their basic properties. It provides links to information on place value, expanded form, and rounding numbers are just a few of the topics on this page.

[Free Registration/Login may be required to access all resource tools.] Solve single variable addition equations

This task builds on that knowledge by asking them to study more carefully the make-a-ten strategy that they should already know and use intuitively. Aligns with CCSS.Math.Content.3.OA.D.9 Identify arithmetic patterns, and explain them...

Take a look at the commutative property of addition and multiplication and take quiz to assess learning.

This resource provides an introduction to vectors and their additive properties.

Explores the commutative, associative, and distributive properties of integers, and rules for adding and subtracting them.

Learn about some uses of calcium chloride as a food additive, as a drying agent, for de-icing, in concrete mixes, and for its exothermic properties.

The commutative property is explained and examples are given in this lesson.

[Free Registration/Login may be required to access all resource tools.] Solve single variable equations involving addition.

Play a game with cubes to explore commutative property of addition.

The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.

Marble Drop Addition is an arcade-style educational game for kids to practice addition. To play the game kids must collect numbered marbles that add up to the target number shown at the top of the screen. Players will learn that there...

Practice discovering and explaining patterns in multiplication tables. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.OA.D.9 Identify...

This lesson contains four rules on order of operations and several examples of each. It also allows you to work out practice problems.

Resource explains how to simplify several types of expressions that contain expressions using the properties of addition and multiplication and applying the properties with the order of operations.

So, you don't know what the distributive property is. Never fear, just ask Lois! She knows all about the "Properties." Find this definition and others in this site were kids can email questions about math and get answers. Math terms...