Print, laminate and cut the cards. Distribute all the cards to the students. There are 26 cards. The student who has the star starts by saying « I have 50, who has 61? ». The second student answers « I have 61, who has 73? ». It continues until all students said their cards. The game can be played with a class or a small group of students. For a small group, give more cards to each student.