This cool maths game is a math games for kids. Using the smaller triangles make up the larger triangle or pyramid by solving the sums. The sums make the multiplication games. The sides of another triangle only match up if you solve the correct maths multiplication or division. The tiles are double sided so one maths game is for multiplication and the other maths game is for division. 
 
49 wooden triangle tiles, each side is about 5cm
Booklet of instructions