Math Solitaire 15 is a brain game. In this game, you will be given 4 solitaire cards. Your goal is to get the value 15 by operating the 4 solitaire cards with addition, subtraction, multiplication and division. Each of the 4 solitaire cards must be used once and only once.

There are 1413 cases in this game. Some are easy, some are hard. Playing this game will make your sleeping brain cells activated! The size of this game is very small (only 100k). Not only can it be played online, but also can be played offline. You can download (please right click and save as) and email it to your friends to keep their brain cells also always active. This swf file can be played in most web browers and media players.