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CASIOの関数電卓fx-CG50の電源を入れてみました - OptoEleMechの日記
My calculator is stuck like this, menu or exit buttons don't work, turning on and off again won't help. Is there any other way to get it to funciton normally again without
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How To Reset A Casio fx-CG50 For The Exam! | Clear The Memory Of Stored ValuesThe Calculator Guide | Exam, Teachable, Graphing calculator