This "I have, who has" card game is a great activity to solidify the relationship between decimals and percents. Students will practice converting decimals to percents and percents to decimals.
Simply deal out the cards and start with the student who has the card that reads "I have 0. Who has the percent that equals 0.8?" The students will look at their cards and answer the question until it gets back to the first student. Time your students and challenge them to get through the cards faster!
In this download, I have included a small-group game with 10 cards and a whole class game with 30 cards. This is a great activity for small group, intervention, morning or closing meeting, or anytime you want to give your students something different to do!