| Keisan Game: Sansuu 1 Toshi | |
|---|---|
Box art |
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| Developer(s) | Tokyo Shoseki |
| Publisher(s) | Tokyo Shoseki[1] |
| Series | Keisan Game |
| Platform(s) | Family Computer[1] |
| Release date(s) | |
| Genre(s) | Edutainment[1] |
| Mode(s) | Single-player Multiplayer (1-2 players) |
| Media/distribution | Family Computer cartridge |
Keisan Game: Sansuu 1 Toshi (けいさんゲーム さんすう１年, "Kei Year's Arithmetic Game")[2] is the first in a series of arithmetic learning video games for the Nintendo Family Computer. This video game is the prequel to Keisan Game: Sansuu 2 Toshi and Keisan Game: Sansuu 3 Toshi.
This particular game focuses on the basics of addition (たしざん) and subtraction (ひきざん). It's a retro video game primarily meant for educational purposes, and as such there is little variety. There are four modes, two for addition and two for subtraction. These modes each contain short mini-games where the player have to solve the displayed math problems. Even though this game is educational, players can only incorrectly guess five times before "dying" and given a game over message. This methodology of learning replicated the "sink or swim" philosophy of teaching and would be used in the later games.