We offer you several tasks at speed. The number of tasks - 15. Tasks are always given in random order. The most important thing - time. You have to solve the tasks as quickly as possible . On your speed depends on the number of points scored. Incorrect answers lead to a fine and , in the end - to the loss of points. Three difficulty levels: Easy, Medium, Advanced. Kinds of tasks: Mathematical operations (addition, subtraction, multiplication, division, comparison), Sequence (numbers, letters, pictures, colors, dots, shapes). There is a table of records (local). The number of tasks will continually increase.