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How do I access the blue things above the keys on my calculator? It's a CASIO fx-991EX : r/GCSE
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Scientific Calculator Trendy Casio Fx 991ex Classwiz
Got ahold of a Casio fx-991ex and CG-50 to match my Classpad II. I'm really impressed with them but there is something about the fx-991ex... (see comments) : r/calculators
