Kick it up a notch with formulas and tables to compare unit rates. Help students define the idea of best, not always the most, in different situations. These cards are designed for groups of three or four and include answers at the top and the next question on the bottom. As students answer the cards, they can check their work by the last card; it has a question but where is the answer? It's on the first card that was played (only if you did answered the cards correctly.) Best of luck as you tangle with the rate snake.