![Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators](http://i.imgur.com/TfdeQ3S.jpg)
Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators
![Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural : Amazon.de: Stationery & Office Supplies Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural : Amazon.de: Stationery & Office Supplies](https://m.media-amazon.com/images/I/71e6EfW23DL._AC_SX355_.jpg)
Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural : Amazon.de: Stationery & Office Supplies
What is the difference between a Casio FX-85GTX and FX-991EX? Does it matter for high school? - Quora
![Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators](https://external-preview.redd.it/QzGxKJTsJYdhrM3qx-mimmS9ZCA-kdPsS7UKs9-PiXg.jpg?width=640&crop=smart&auto=webp&s=b38060e5e43a0731e2bd83ee05b1e3cb36b704e6)
Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators
![Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators](http://i.imgur.com/BH9vadx.png)