![I bought this Casio fx-CG20 from a local store for 15$. I can clearly say its a huge improvement after my grandfathers sld-767. : r/calculators I bought this Casio fx-CG20 from a local store for 15$. I can clearly say its a huge improvement after my grandfathers sld-767. : r/calculators](https://preview.redd.it/i-bought-this-casio-fx-cg20-from-a-local-store-for-15-i-can-v0-q1qkxtydeema1.jpg?auto=webp&s=d4ac4e7e6db01bfc3fe936bffa84d7c271ef9fc5)
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
Casio GTR fx-CG20 Graphic Calculator in Nordrhein-Westfalen - Grevenbroich | Fachbücher für Schule & Studium gebraucht kaufen | eBay Kleinanzeigen ist jetzt Kleinanzeigen
![CASIO FX-9860 GII + Casio FX-CG 20 Begleitheft - Ott, Roland; Bohner, Kurt: 9783812013055 - AbeBooks CASIO FX-9860 GII + Casio FX-CG 20 Begleitheft - Ott, Roland; Bohner, Kurt: 9783812013055 - AbeBooks](https://pictures.abebooks.com/isbn/9783812013055-us.jpg)