Вычисляй быстро

Calculate quickly is a game that trains the speed of mathematical calculations. You can choose the difficulty level and the number of operations. The more points you score, the less time you are given for calculations, and the more difficult the examples become. At the end of the game, you can look at your statistics and work on your mistakes. Suitable for both school-age children and their parents. By training the brain, we prolong our lives.