This is a really simple Q & A game for students to practise the difference between cardinal and ordinal numbers. Start by teaching the difference between cardinal and ordinal numbers (use the worksheet I uploaded entitled "numbers"!) and then do a follow-up with this game.
Cut out the cards and laminate them.
Divide students into two groups (girls versus boys always works well if your group is too large to have students changing places in class).
Team 1 picks a card and asks Team 2 question.
Winning team is the team with the most correct answers by the end of the Quiz.
This activity works well even if you have a big group.