Each board contains two sets of numbers: one set from 1 through 70 and the second set from 1 through 25. 2. To play a board, pick five numbers from the set of 70 numbers, then pick one number (the Megaball) from the set of 25 numbers. Fill in the circles for the numbers you wish to play.

Mega is a unit prefix in metric systems of units denoting a factor of one million (10⁶ or 1000000). It has the unit symbol M.