A game of match up using fractions, decimals, percentages and fraction wheels.
Print out all of the cards and stick the name cards on the back of each of the concepts, e.g. fractions on green, percentages on pink, decimals on blue and fraction wheels on purple. Laminate the cards so they last longer.
Place all of the cards face down in rows. Students take turns to chose two cards to turn over. If students can match the values, then they get to keep the cards. The player with the most pairs of cards wins.
You can change the rules of this game so the students are looking for all four concepts with the same value or just pairs.