How many balloons does Bill have? Help him figure it out with this unique math game that involves simple addition and subtraction as well as colour recognition. The game comes with ten wooden picture cards of Bill and his balloons, ten three-colour tiles, number tiles, dot tiles and operation tiles. Each picture of Bill will have a three-colour tile that matches the colours of his balloons and his outfit. Then find the dot tiles that match the number and colour of the balloons, and finally create the appropriate addition or subtraction equation using the number and operation tiles. Everything is contained in a handy slide-top box measuring 24 cm x 15 cm x 5 cm.