AlexanderB, the questions that are fired at you in that segment are basic maths that won't stray far from your times tables, however you will be required to 'process' these answers in certain ways and submit an aswer based on this.
In summary you will be required to perform a fine manual task with a flightstick, whilst you have to not only solve a question but also think on your feet. Its not as daunting as it sounds and if you make sure you brush up on your mental arithmetic, which is a given considering the nature of the job, and perhaps spend a bit of time on a flight sim you'll be as prepared as you can be.