Math Arcade on Funbrain
Arcade-style math games including Ball Hogs, Mummy Hunt, Bumble Numbers, and more.
www.funbrain.com/brain/MathBrain/MathBrain.html

Cool Math Games
Thinking games and puzzles for kids of all ages.
www.coolmath-games.com

Mathpuzzle.com
Celebrates math puzzles and mathematical recreations.
www.mathpuzzle.com

Math Playground Games
Practice your skills with fun and challenging games from Math Playground.
www.mathplayground.com/games.html

Cut the Knot
Interactive mathematics miscellany and puzzles.
www.cut-the-knot.org

Math Games - Play Kids Games
Play math learning games including math facts, addition, subtraction, multiplication, and division games.
www.playkidsgames.com/mathGames.htm

Free Puzzles
Offering geometry, logic, math, weight and other categories.
www.freepuzzles.com

FunBrain.com Math Baseball
Players must answer math questions correctly to score runs in this baseball game.
www.funbrain.com/math

Problem Site, The
Provides math problems, brainteasers, and riddles online. These puzzles aid in developing problem solving and lateral thinking skills.
www.theproblemsite.com

Mathwizz
Problems and help for K-12, loan and mortgage calculators, and fun links.
www.mathwizz.com

Hooda Math
Hooda Math offers math games for children, worksheets for teachers, and math tutorials for parents. All math games are aligned with NCTM standards.
www.hoodamath.com

Math Games - MrNussbaum.com
Find a variety of math games including Defeat the Math Monster, Speed Math, Trimathlon, Math Slalom, and many more.
www.mrnussbaum.com/mathgames.htm

Math Games - PBS KIDS
PBS KIDS Math Games are a fun way for kids to practice math skills such as counting, addition, estimation, and measurement, as well as many other early math concepts.
pbskids.org/games/math.html

thrackle.org
Dedicated to John Conway's thrackle problem.
www.thrackle.org

Nick's Mathematical Puzzles
Collection of puzzles with hints, full solutions, and links to relevant mathematical topics.
www.qbyte.org/puzzles