Click to begin the activity. Read the riddles carefully. Click and drag the coins you need to answer the problem from the wallet (brown box) to the payment (green box). There are enough coins in the wallet to solve each problem, however, some of them are stacked on top of each other. Go through and do this for all 20 slides. If you need to take a break, make sure you click before exiting the app the so that your work is saved. When you're done, click to submit your work.