A fun game you can play on the road as well as on the computer. There is a virtually unlimited number of math puzzles, with 3 ways to play: the standard 10 problem game, in which you are presented with 10 problems; or the Time Trial, in which you are given about 2 minutes to answer as many questions as you can. And finally, the third way toplay is Combat! Combat! is a two-player way to play in which the first player to score 5 points wins (this is not available in all levels). The 11 levels of difficulty ensure continuing challenge. To play, you must determine if the 2 numbers on the plates match according to our rules. Level 1 is easy for a 9 year old, while level 11 will challenge adults.