Numberball (1994)

Numberball is a 1-player educational math game for the Apple II. The player tries to solve mathematical equations by shooting balls into an equation via a series of tubes and switches. An equation is shown on the bottom of the screen, and a ball with a number appears in a slot. The player can choose to shoot or discard the number. The player must align the tubes so the number arrives in the correct location to solve the equation.