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An educational math game for young Japanese students. The first in a series of five games released in 1986 by magazine giant Tokyo Shoseki.
Game modes: Single player
Keisan Game: Sansuu 1-nen released on April 25, 1986, developed by Tokyo Shoseki Co., Ltd. and published by Tokyo Shoseki Co., Ltd..
Keisan Game: Sansuu 1-nen is available on Family Computer. It supports single player.