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My casio fx-CG 20 is very dim even when there is plenty of battery and the brightness is full too. Pls help i have a test tmr : r/calculators
Eddie's Math and Calculator Blog: Casio fx-CG50 Review (updated 3/2/2018)
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I bought this Casio fx-CG20 from a local store for 15$. I can clearly say its a huge improvement after my grandfathers sld-767. : r/calculators
