【實用遊戲app】Sum12|最夯免費app-綠色工廠好玩App

A fascinating game of dominoes which trains the mental arithmetic.It is suitable for children and adults.The purpose of the game is to release the playing area completely from the dominos.Among the visible overturned dominoes, couples with a sum of twelve must be found and selected successively.If two well-chosen dominoes really form the sum 12, the dominoes will be removed off the playing area. Now, the released dominoes can be turned.Not every play leads to the complete empty of the playing area.