In this activity, learners build and play three math games. In the first game, called "Switcheroo," learners place marbles in holes 1 through 4 and 7 through 10. The goal is to change the marbles' places (right four to the left, left four to the right), with only restricted options (hints are included). Next, learners create two spinners to use in addition to the marble board for the games "Gambler" and "Finish Line." In "Gambler," learners spin the spinners, add the numbers, and place marbles in any two holes that add up to that number. In "Finish Line," learners compete against each other by flicking both spinners and trying to make a particular value by adding, subtract, multiplying, or dividing the numbers on the spinners.