In the application, the product of two numbers from the multiplication table is randomly displayed. Meanwhile, a total of five numbers are displayed, one of which contains the correct answer. After the numbers stay on the screen for a certain period of time, the numbers are covered. In this application, the user is asked to choose the correct answer. +10 points for each correct answer and -10 points for incorrect answers. Every 100 points, the display time of the numbers is shortened. When 500 points are reached, the user is informed about how many seconds he has reached this point.