This fun and quick game is perfect for building further mental maths skills once gtdude dice level 1 has been mastered to play throw the two number dice containing numbers 6 7 8 9 11 and12 along with the function dice containing and x and then do the sum the player with the highest score wins one of the dudes and play continues until a player has won all three great for boosting confidence through play and an ideal travel toy as it comes in a lovely drawstring bagbuilds mat