Probability Sums is a 2-4 player game that helps students understand probability. Each player places a counter on the Probability Sums game board, selecting 1 number, 2 numbers, 4 numbers, 8 numbers, or 12 numbers for the roll of the dice. (Think roulette!) Three dice are rolled and players with a counter on the sum rolled win the points shown in the Odds Box. The player collecting the most points at the end of the game wins! A fun game that is great as a math center or a class game. This activity meets or exceeds the Common Core Standards of Mathematics.