Keisan Game: Sansuu 2-nen is a single-player educational game designed to help young students improve their math skills. In this game, players engage with various math exercises and puzzles tailored for second-grade students, set within a colorful and engaging interface. It is part of a series of educational titles released in 1986, aimed at making learning math fun and accessible for children. The game stands out with its focus on early math concepts, including addition, subtraction, and basic problem-solving, utilizing interactive gameplay to reinforce learning.