Első számjátékom

A game with numbers for small children. Every player gets the same number cards (they depict every number between 1 and 10 twice), and a goal number between 1 and 20 is turned up. The first player who can make this number using his/her number cards, addition and subtraction can discard those cards. Then another goal number is turned up. The winner is the first player who discards all the cards.