Interactive
University of Cambridge

University of Cambridge: Nrich: Game Wild Jack

For Students Pre-K - 1st
This math game is great for practice using all the operations: addition, subtraction, multiplication, and division. All you need is a deck of regular playing cards. Just follow the directions and you are in business.
Activity
University of Cambridge

University of Cambridge: Nrich: Napier's Bones

For Students 3rd - 8th Standards
Use this one page website to learn how to multiply and divide a "new" way. This method was invented over 400 years ago by John Napier. A detailed explanation is only a click away.
Unit Plan
PBS

Pbs: The Lowdown: Percents Defined

For Students 6th - 8th
Learn how to calculate percent as a rate per 100 in this video from KQED. In the accompanying classroom activity, students model percent with a 10 x 10 grid. After watching the video, they create a design or picture on a 10 x 10 grid,...
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Other

Project Happy Child: Multiplication Worksheets

For Students Pre-K - 1st
2000 basic multiplication worksheets are available at this web site. They can be printed and used for a variety of practice purposes. Some helpful hints are included to avoid mindless practice that could quickly become counter productive.
Activity
University of Cambridge

University of Cambridge: Nrich: Multiplication Squares

For Students 3rd - 5th Standards
On this one page website sharpen your logic and multiplication skills while working on this challenge. The solution is available to double check your solution.
Activity
University of Cambridge

University of Cambridge: Nrich: Largest Number

For Students 3rd - 8th Standards
On this one page website sharpen your logic, multiplication, and problem solving skills while working on this challenge. The solution is available to double check your solution.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Interactive Times Table

For Students Pre-K - 1st
Use this interactive multiplication table to practice the multiplication facts through 9 X 9. CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison
Interactive
University of Cambridge

University of Cambridge: Nrich: Game Pass the Peas, Please

For Students Pre-K - 1st Standards
Use this game to improve your subtraction or addition skills. Gain skills in two areas at the same time! There is a "Get Printable Page," link at the top to print out materials you need. This game can also be altered to practice...
Interactive
Quia

Quia: Multiplication Madness Fives & Sixes

For Students 2nd - 5th
Do you need practice learning and remembering your multiplication facts for the fives and sixes? This flash card practice is the web site for you! There is a link to a list of the numbers being used so you can check your answer.
Interactive
Quia

Quia: Multiplication Madness Fives & Sixes

For Students 2nd - 5th
Do you need practice learning and remembering your multiplication facts for the fives and sixes? This word search is the web site for you! There is a link to a list of the numbers being used so you can check your answer.
Activity
Utah State University

Teacher Link Printable Teacher Aids

For Teachers Pre-K - 1st Standards
A huge collection of worksheets for addition, subtraction, multiplication, division, and handwriting practice all on PDF files ready for you to download and print for your students.
Lesson Plan
Other

West Contra Costa Usd: Volume: A Foundation in Unit Cubes [Pdf]

For Teachers 4th - 6th Standards
A very detailed lesson on determining the volume of rectangular prisms, teaching students how to derive the formula for volume, and to use it successfully. Plenty of examples, student work, and assessment options.
Activity
Quia

Quia: Multiplication Facts Review 1 10

For Students 3rd - 5th
Do you need practice remembering or learning your multiplication facts up to 10 X 10? This matching game is the web site for you! There is a link to a list of multiplication facts and their products you can click if you want to see if...
Interactive
Quia

Quia: Multiplication Madness Fives & Sixes

For Students 3rd - 5th
Do you need practice learning and remembering your multiplication facts for the fives and sixes? This concentration game is the web site for you! There is a link to a list of the facts being used so you can check your answer.
Interactive
Quia

Quia: Brain Buster Multiplication

For Students 2nd - 8th
Go from rags to riches as you advance through the levels in this "Who Wants to Be a Millionaire?," type multiplication game.
Interactive
Study Pad

Splash Learn: Decimal Arithmetic

For Students 5th Standards
[Free Registration/Login Required] This game provides practice in decimal arithmetic including addition, subtraction, multiplication, and division of decimals.
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Khan Academy

Khan Academy: Multi Digit Multiplication

For Students 3rd - 5th Standards
In this exercise, students practice multi-digit multiplication. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Activity
Math2

Math2: Multiplication Table

For Students 3rd - 8th Standards
This site contains links to games, tricks, and tips for learning multiplication facts. Spanish version can be found on the homepage.
Activity
Quia

Quia: Multiplication Tables 1 12

For Students 3rd - 8th
Practice multiplication facts using a matching game.
Activity
Quia

Quia: Multiplication Tables 1 12

For Students 3rd - 8th
Practice multiplication facts by playing Concentration-like game.
Interactive
Calculator Soup

Calculator Soup: Long Multiplication Calculator

For Students 9th - 10th Standards
Multiplication of positive or negative whole numbers or decimal numbers as the multiplicand and multiplier to calculate the product using long multiplication. The solution shows the work for the Standard Algorithm.
Interactive
Calculator Soup

Calculator Soup: Mixed Number to Percent Calculator

For Students 9th - 10th
Convert mixed numbers or mixed fractions to percents. The mixed number to percentage calculator finds the decimal equivalent by finding the decimal value of the fraction, adding the decimal to the whole number part of the mixed number,...
Interactive
Shodor Education Foundation

Shodor Interactivate: Arithmetic Four

For Students K - 1st Standards
You can challenge a friend to play this game to practice your arithmetic skills. Be ready because any kind of problem can pop up. You can adjust the problems to make them harder and also to give you less time.
Activity
University of Cambridge

University of Cambridge: Nrich: Game Asteroid Blast

For Students Pre-K - 1st Standards
Use this game to improve your addition, subtraction, multiplication, and division basic facts. Practice all these skills and have fun at the same time! There is a "Get Printable Page," link at the top to print out the materials you need.