My son just showed me this game. Press either Q or P to select the correct answer. As each round progresses the timer gets faster and the problems move from basic arithmetic to things like time determination ("If it is 43 minutes past 10:38, what time is it?") and all sorts of other stuff.
I lost on round five. 20 Ã· 2. My choices were 18 and 10. In my effort to get the answer in before time ran out I inadvertently selected 18 because I thought it was subtraction rather than division.