This is an enjoyable and addictive way to improve your mental arithmetic by beating the clock to a new high score. You may choose to be tested on Addition, Subtraction, Multiplication or Division, each with varying skill levels.

At the start of the Addition and Subtraction sessions, you are asked to set the level of difficulty by selecting the limit of random numbers used in the questions. You may choose random numbers between 1-5, 1-10 or 1-99.

The Multiplication section allows you to be tested on a particular times table (2x - 12x), random tables (2x-12x) or more difficult tables. The Division section gives you the choice of divisors from 1-5, 1-12 or higher numbers.

You may choose to see the correct answer to each question or turn off this facility in order to improve your response time.