Scientific calculator 2 lines 252 functions casio fx 83gt amp fx 85gt plus casio fx 83gtplus sb ut the casio fx 83gt scientific calculator has a twin line lcd dot matrix display showing calculations in a natural textbook format the fx 83gt plus is powered by a single aaa battery and offers you additional functions over older models such as verify prime factorisation and recurring decimalclick here for full details of the casio fx 83gt calculator class pack of 30 casio fx 83gtplus