There are two covers available.
Sometimes they just want to make their own answer key...and I am ok with that! I have provided an answer key as well in the download!
How I set up this game is different than others. I gave every student a card. Once they were done with the card, they would go return it to my desk.
They then would go find the answer card and write down the answer letter. This was a good way to keep them moving and engaged.
When they were done with all 18 cards, they were able to go and check themselves. It was very effective on holding the students accountable for their own work and grades.