El gran juego de las restas

Old educative boardgame to help improve students to do subtraction operations. It is kind of a race, from 2 to 6 players or teams. It is played with four dices. All players throw them and the one with the highest sum starts playing. During the game a player will throw all four dices and remain with three of them. He or She will then calculate the "four" possible scores (the title refers to that) and use it to advance on the board.