Whoever wants to do mathematics on a vacation, but not here, if you see the game Christmas & math, you will immediately forget about other entertainments. If you plunge into the world of fascinating numbers and mathematical examples, you will forget about everything. And the point is in competition. You probably want to express yourself to amuse self-esteem and raise self-esteem. And this can be done only here, and quite simply, quickly answering questions. An example appears with a ready answer. You just need to click on one of the buttons at the very bottom of the screen: true or false.