Money makes everything a little more fun for your mathematicians! Show them how they can implement their addition skills in the real world using this activity. Scholars examine six sets of coins, which are photographed. They include pennies, nickels, dines, quarters, and half-dollars. They add up the amount and record the value of each set. For a final challenge, have learners add up all six sets! Or, you could have them predict which of the sets will be worth the most at first glance.