Additional Details ------------------------------ Product description: Give Your Children the Skills They Need! Working at their own pace, children will develop problem-solving skills, understand math symbols, and learn how to use numbers up to 100. They'll get plenty of number practice with these absorbing games and challenging activities, and a system of rewards and positive reinforcement helps your child gain confidence in early math skills! Math Machine A game that gently introduces numbers and symbols in a fun way. Sum It Up! Get a "hands-on" feel for addition with real objects. Count It Down! Click to remove moving objects for an exciting introduction to subtraction. Solve It! Solve arithmetic problems as well as hidden puzzles. Features: Learn fundamental concepts of adding and subtracting Develop problem-solving skills Intelligent software adjusts to individual strengths and weaknesses Printable worksheets and built-in progress tracking Plus a bonus Supergame reached when all four games have been completed. It encourages speedy mental arithmetic. Windows XP