How to reset memory on Casio fx-991EX Classwiz | Check out this video to learn how to reset memory and use it on your favourite calculator - Casio fx-991EX Classwiz. | By
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The Reset Button. How To Restore A Casio Classwiz fx GT85x Classwiz Scientific Calculator (clear). - YouTube
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0760] How to factory reset a Casio scientific calculator (fx-82AU Plus II, fx-100AU Plus etc) - YouTube
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