Set up a 10×10 grid
Label one side with the numbers 0 through 9
Label the other side with the numbers 0 through 9
Assign each square to a player
Randomly assign the numbers after all squares are filled
Use the last digit of each team’s score to determine the winning square
Check the score at the end of each quarter or at the final score
Match the score digits to the grid row and column
The owner of the matching square wins that round
Repeat for each quarter or for the final score
Divide prizes according to the rules set before the game starts