The simplest and math fun game. This game which help to improve your brain capacity, in fact, a brain exercise, helps young children to improve their mathematical skills as well as it helps them to improve their personal characteristics such as competition and winning and let them have entertaining moments. Test your calculation skills by playing the wonderful game. Select your level and start playing game. This game is a highly-competitive, math-based, reaction speed and brain power game . You can manage the difficulty level easy,medium, hard levels. - This game, by three difficulty option. - This game is a highly-competitive, math-based, reaction speed and brain power game This game for all ages from kids to adults. Play with numbers for Addition, Subtraction problems. Just check if the answer is right or wrong. You’ll love this simple game.  Exercise and test your addition, subtraction skills in this very good math challenge!