Explains the four mathematic properties of addition. Gives exercises and games to practice this skill.

A comprehensive tutorial from AAA Math that includes multiplication facts, multiplying numbers, multiplying fractions, multiplying decimals and properties of multiplication. Games and practice exercises are part of this lesson.

If you are looking for a website that explains and defines the basics of mental multiplication with helpful hints then you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.

[Free Registration/Login may be required to access all resource tools.] This lesson shows you how to determine if two matrices can be multiplied together and explains that the commutative property does not apply.

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.

In this lesson on multiplication facts, 3rd graders learn multiplication properties, explore equal groups, and apply their learning to a real-world situation.

In this activity, students investigate constructing arrangements of different number of manipulatives into equal groups. They learn to use mathematical language, identify patterns with numbers, recognize the commutative property, and...

The tutorial examines the associative, commutative, and distributive laws. The resource consists of detailed examples and explanations.

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...

Playing a game for the order of operations engages students in math fact review and builds fluency.

Third graders are expected to fluently multiply and divide within 100. This allows students to practice their math facts and then check their work using area models.

Explains how to perform matrix multiplication, including how to perform products on two block matrices. Also has links to related topics.

A huge collection of teacher resources in basic multiplication and division. Information on multiplication as repeated addition and division as repeated subtraction. Includes worksheets, games, PowerPoint presentations, smartboard...

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

[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...

By now, students have learned that fact families include both addition and subtraction facts. They have also learned that by reversing the order of the addends, they can form related addition facts with the same sum. The students will...

Writing word problems reinforces understanding of the order of operations.

Third graders develop a meaning of multiplication through the use of arrays.

Sixth graders are presented with a completed multiplication equation and are asked to use it to find the answers to seven other equations. To do this, they must use their reasoning and estimation skills. Aligns with 6.NS.B.3.

Counting by 10's is easy for students of this age. Knowing that base 10 can be used to help multiply and divide in the higher numbers by decomposing is critical. This lesson sets the base for future work.

[Free Registration/Login may be required to access all resource tools.] A collection of resources that teach students that, unlike multiplication of numbers, matrix multiplication for square matrices is not a commutative operation, but...

The basic identities and properties of addition and multiplication are listed. No explanation, simply the identities.