Math Computation
Line Jumper 
Solve math problems using an onscreen number line. Levels of difficulty go from adding and subtracting to 10 through using positive and negative numbers through 16.
Skills: adding and subtracting facts to ten, adding and subtracting integers
Math Arcade from Funbrain 
This is a linked set of 25 games to practice computational skills. Choose one of 8 levels, then start the first game. You must "win" each game to go on to the next, while the game board on the left keeps track of your progress. Each player is given a password (without giving personal information) which allows you to resume play where you left off on the next visit to the site.
Skills: computation with all four operations (difficulty depends on the level chosen )
Comparing Number Values 
practice comparing number values playing a fun more than, less than activity. Compare the numbers presented and decide which symbol >, <, = completes the statement. Level two uses negative numbers and decimals.
Mr. Myers' Math Mania Facts Practice 
Scroll down to the "Online" practice section and choose which operation to practice. You can even set a timer at the top of the screen.
Spacey Math 
Practice facts from any of the four operations (addition, subtraction, multiplication, or division) at this site.
Skills: addition, subtraction, multiplication or division facts
Mission Magnetite 
Match fractions, percents, and shaded figures with this game.
Skill: converting fractions to percents, representing percents and fractions with shaded figures
Decimal Beat the Clock 
Type the decimal represented by a shaded grid. Several levels of difficulty and speed.
Skill: identifying decimals from tenths to thousandths
Math Playground Word Problems 
This site contains several activities for practicing word problems at all levels, from addition and subtraction through algebra, geometry, and probability. The two activities entitled "Various Concepts" offer videos the problem being worked, step-by-step, with audio explanations. There's also an SAT prep section.
Monster Crossing 
Solve word problems for addition, subtraction, multiplication, and division by navigating the obsitcles and getting the monster across to the answers on the other side! Use the keyboard to get the monster across the busy four lane road and over a treacherous river to reach the correct answer.
BrightStorm 
This site offers over 2000 videos illustrating math concepts from algebra, geometry, trigonometry, and calculus, as well as test-taking strategies for the PSAT. Each topic typically consists of an introductory section, then three worked problems to illustrate the solution method.
Note: This site requires free registration, but an email address is required. Within Mesa Public Schools, please contact your resource teacher or the assistive technology department for a user name and password.
HoodaMath 
This site offers games which require math skills. They are categorized as arithmetic (computation), geometry, and logic and cover a wide range of skills. Some games require extended time or return visits to the site to complete, others can be used for just a few minutes of extra practice. There is also a tutorial section, where concepts are explained while viewing a blackboard movie showing how to solve a particular type of problem (QuickTime required for viewing tutorials). These cover whole numbers, decimals, fractions, percents, order of operations, and algebraic properties. They are most appropriate for intermediate and junior high age students.
Skills: adding, subtracting, multiplying, dividing, money, fractions, decimals, geometry, algebra, logic and visual/perceptual puzzles
WebMath 
This is a great resource for any level of math problem, from counting to calculus. Just choose the math category, put in the numbers from the problem you are attempting, and WebMath will provide a step-by-step guide of how to solve it!
Skills: covers all levels of math through calculus
Math.com 
This is another wide-ranging site. Select a topic, from "everyday" math through calculus, and use the tabs across the top to see tutorials and work practice problems with hints. The "calculator and tools" tab offers many different converters (liquid measures, distance, weight, temperature), application-specific calculators (interest rates, integrals, probability), and graphers.
Skills: covers all levels of math through calculus
FreeMathHelp 
This site offers videos demonstrating how to work problems in algebra and geometry. Typical videos run 3-5 minutes and offer an audio narrative of how to work a particular type of problem while watching each step worked on a virtual white board. To find the topic you need, click on either the algebra or geometry link in the dark blue bar, then scroll through the topics on the right hand side. (Skip past the first group of general titles like "algebra I" to get to the specific skills, like "factoring polynomials".)
There are also text lessons with step-by-step examples for many algebra, geometry, trigonometry, statistics, and calculus problems.
Note: Only one video on each topic is free, and each video lesson is concluded with a suggestion to sign up for the for-fee additional lessons. The free Flash player is required to view the tutorials.
Visual Math Learning 
This site provides lessons, practice exercises, games and puzzles on topics from basic addition through algebra. All of these lessons are read aloud to the student, and animated numbers move to illustrate concepts like borrowing, regrouping, and balancing equations.
Skills: addition, subtraction, fractions, decimals, integers, equations, variables, and functions.
Coolmath 
Coolmath has easy-to-follow lessons and examples for pre-algebra and algebra topics, as well as math games and practice activities for addition, subtraction, multiplication, division, decimals and fractions.
Skills: addition, subtraction, multiplication, division, decimals, fractions, exponents, polynomials, radicals, systems of equations, quadratics, absolute value, lines (slope, graphing), and inequalities
AlgebraHelp 
There are interactive worksheets for many algebra problems. Work the problems at the computer, enter your answer, and check your answers. If you need extra help, links are provided to step by step examples.
Skills: proportions, exponents, polynomials, quadratic formula, graphing