NumberDrop - A uniquely challenging math puzzle game.
2048 - Play 2048 Game Online. Join the numbers and get to the 2048 tile!
dworksheets.com - Free K-12 math worksheets to assist students, teachers, parents & tutors to practice, teach or prepare grade school assignments, classwork or homework questions & answers is available online in printable & downloadable format.
2048 by Uberspot - Port of the 2048 game by Gabriele Cirulli. It's playable without network connection.
Sum Fun - A fun number puzzle game for iPhone and iPad.
Threes - Threes is an Amazing Challenging Puzzle video game developed and published by Sirvo LLC.