Obviously, four is the perfect number when you're playing Four Square. Scholars first use multiplication and division to solve a set of problems on the number of balls needed, the number of games, and the number of players required for a...

Educational publisher Houghton Mifflin provides a colorful, engaging site that offers test-prep practice, test-taking strategies, and brain teasers on a variety of math concepts for grades 1-6. Just "Choose an activity and pick a grade,"...

Educational publisher Houghton Mifflin provides a colorful, engaging site that offers test-prep practice, test-taking strategies, and brain teasers on a variety of math concepts for grades 1-6. Just "Choose an activity and pick a grade,"...

Explore more than twenty math concepts such a perimeter, rounding, exponents, decimals, sign numbers, and more using this interactive basketball game. A Spanish version is also offered. Students results are tabulated daily.

Use this interactive math crossword puzzle to build number sense skills. Simply fill in the missing numbers based on the operation. Immediate feedback given to responses.

A collection of worksheets that focus on data analysis and organizing data. Includes detailed examples, colorful visuals, and a link to a related game. Acrobat Reader required.

This introductory addition lesson, explores the relationship between adding and number patterns using a number pyramid designed by mathematician Carl Gauss. A short lesson with interesting facts and links to related games for practicing...

[Free Registration/Login Required] Solve the number puzzles as you practice basic addition skills and improve your number sense. The site has challenging activities with varying levels of difficulty.

See how many different regular polygons you can make using the 12 knot Egyptian rope at this one page website. Check your solution right at the website.

Review or learn the basics of single-digit subtraction in this concise lesson that has related vocabulary and strategies for solving subtraction problems. This lesson includes lots of examples and links for two interactive subtraction...

Get the facts on how to subtract more than two values in this short subtraction lesson. This lesson offers step-by-step examples, suggested strategies and shortcuts, and links to related interactive games. Both games are fast-paced and...

Get an overview of the subtraction process in this brief lesson that introduces key concepts, vocabulary, and symbols. Links to related, interactive practice are also available in this lesson.