Manuel Mazzanti on Twitter: "@PeladoProfe Nada supera a la Casio fx-4500P https://t.co/W0PwzUsb5H" / Twitter
CASIO プログラム関数電卓 fx-4500P
hangyodon1123 on Twitter: "Casio fx-4500P There are thin protrusions on both sides of the [AC](ON) key. The power does not turn on without permission. https://t.co/306HCLPNHh" / Twitter