Griddition!

Less Than 8 is a fun and challenging numbers puzzle where the main goal is to fill all rows and columns on the play board with digits that add up to 8 in each direction.In this game you have to think like Sudoku but click like you're clicking for candy! The gameplay is simple, just tap to place the numbers and when all rows and columns add up to 8 the player wins.

Sudoku puzzles for kids to experts, including 9x9 Sudoku, Samurai Sudoku, 25x25 Sudoku, 4x4 Sudoku, 6x6 Sudoku, 8x8 Sudoku, 12x12 Sudoku, 16x16 Sudoku, 20x20 Sudoku, Multi 2 Sudoku, Multi 4 Sudoku, su Doku, and su do ku puzzles. No installs, no plugins, no flash needed.

A fun number puzzle to train your brain!

An easy logic game to master your math skills and prove that you didn't skip school for nothing after all!

Addition is one of the simplest and earliest mathematical tricks taught. Everyone ends up adding two numbers every day for some reason or the other. There couldn't possibly be anything more basic than this.

Mathdoku (also called KenKen® and Calcudoku) is a math and logic puzzle similar to Sudoku.In Simple MathDoku, in addition to being able to note candidates for each cell, you can also note combinations of candidates for each cage. By using the cage note feature, you can solve high difficulty level puzzles more easily.

Enjoy endless Sudoku fun. Sudoku Uno can create a seemingly unlimited number of Sudoku grids for you to solve. Sudoku Duo on iPad allows you to partner up with a second player or challenge an opponent to solve a Sudoku grid while both of you use the same iPad.