Keisan Game: Sansuu 4-nen

Keisan Game: Sansuu 4 Nen is an educational game built around four mathematics mini-games: division, decimal addition and subtraction, fraction addition and subtraction, and decimal multiplication and division.

The division-based modes place players in and around a building, where they search for number answers while avoiding or defeating monsters and evading an invincible ghost. The fraction mode uses a maze-like race track, requiring players to find the correct number tile and then locate the exit while avoiding enemy cars.

Each mini-game offers two difficulty levels and supports two-player alternating play. The game was released for the Family Computer and Nintendo Famicom.