University of Cambridge
University of Cambridge: Nrich: Magic Squares 4x4
Warm up your problem solving skills to make the magic work in these magic squares by getting the correct numbers in the correct spot. You can check your solution at this one page website.
University of Cambridge
University of Cambridge: Nrich: Number Juggle
Use those problem solving skills to find a solution to this triangle problem. When you have your solution you can check it right on this one page website.
National Council of Teachers of Mathematics
Nctm: Illuminations: Five Frame
Count the amounts given to find the total. Five different games are available to practice counting and combining amounts.
University of Cambridge
University of Cambridge: Nrich: 6 Beads
Use the diagram on this one page website to solve the problem. There are teacher notes and the solution is only a click away.
AAA Math
Aaa Math: Addition Facts: Adding 9 and 10
Use this online game to practice your 9 and 10 addition facts. A percent score of your correct answers, as well as running totals of correct and incorrect answers are given while you play.
AAA Math
Aaa Math: Addition: Facts Through 10's
Use this online game to practice your addition facts through 10+10. The game keeps track of how many answers you have correct and incorrect. It even gives you a percent score of your correct answers.
AAA Math
Aaa Math: Adding Three Numbers
Use this online game to practice adding three single digit numbers. The game gives running totals of your correct and incorrect answers, as well as a percent score of your correct answers.
AAA Math
Aaa Math: Adding Three Numbers
Find an explanation on how to add three numbers together using pencil and paper. There is also an online game that will keep running totals of your correct and incorrect answers. The lesson also gives you a percent score of the correct...
DLTK
Kidzone: Math Worksheets
This site provides printable worksheets for basic math operations. Organized by grade level, concept & theme.
Other
Math Pages: Bernoulli Numbers and Harmonic Series
This site from Math Pages contains information explaining harmonic series. The information is very in-depth and mathematic, but good factual information is provided. A good overall site.
Fun Brain
Fun Brain: Math Car Racing (Easy Addition Game)
FunBrain's easy addition facts game lets players race cars, fueled by correct answers, around a track.
ICT Games
Ict Games: 100 Hunt Plus 9
You will need to add 9 to the target number given. Find the sum and click it in the hundreds chart. See if you can keep your time score as low as possible.
Math Aids
Math Aids: Estimation Worksheets
Great resource to practice and strengthen math skills pertaining to estimation. Math worksheets are printable, may be customized, and include answer keys.
Other
Scweb4free.com: Addition Balloons
Find the sum of the two red ballons among the green ballons in this concise addition game. Practice basic facts through 15. Answers checked instantaneously.
Quia
Quia: Addition Flashcards Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a flashcard type format.
Quia
Quia: Addition Concentration Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a concentration game type format.
Quia
Quia: Addition Matching Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a matching type format.
Quia
Quia: Addition Flashcards Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a flashcard type format.
Quia
Quia: Addition Concentration Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a concentration game type format.