Calcular Media, Varianza y Desviación Estándar con calculadora CASIO fx-350ES - YouTube
Amazon.com: Nueva calculadora científica Casio FX-350ES Plus : Productos de Oficina
Scored a nice Casio FX-350. I think this series is very stylish. The double sided tape that keeps the aluminium front on had completely deteriorated, the front simply fell of when I