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.
Sum - Simple Maths Puzzle - How fast can you add two numbers?
Math Search - See posts, photos and more on Facebook.
Simple Sudoku - Freeware Sudoku Puzzle Maker and Solver
HoDoKu - HoDoKu is a sudoku helper written in Java and available in English and German.
Math Master - Brain Quizzes - Math Master is a free math quiz game designed for all ages!