Maths Made Simple / release r22veavy / correction
Suggest a correction 全脳シリーズ Vol.02 インド式計算全脳ドリル, Nintendo DS, JP
Corrections are GitHub issues on the public data repository, so each one is in the open with its evidence. This page fills the issue in; on GitHub you say what kind of evidence it is and submit (a GitHub account is needed). How corrections are checked.