Addition Quest is a thrilling game of addition where numbered tiles scroll down and you have to add up two tiles to make up a chosen number before a tile drops to the bottom of the screen! - Master addition in a fun way. - Relaxing for adults and children alike to practise keeping up math skills in your free time. - Get more points and challenge your brain further by speeding up the falling tiles. - Use the rotating plus signs as wild cards. - Stimulate your brain.