Basic Math is an Atari 2600 video game where you get to practice elementary mathematics with one or two-digit numbers. All four arithmetic operations are used here: addition, subtraction, multiplication, and division. The game keeps track of how many problems you get right and shows your final score at the end.

The8bitbeast manipulates the game so that it gives him problems that can be solved with the fewest amount of frames necessary. For more information, you can read his notes here.