|the fx-310 is functionally the same s the
fx-350, both have 8 digits (11 internal) as
well. not sure why there were two models. perhaps this one is slightly
newer or possibly designed for different territories.
i prefer this
style to the fx-350, with the on switch and
model button at the very top. like the fx-3500p
also in this style.
this model is quite thin and usually lives in the casio wallet-style
case. it is powered by two G10 cells (V389) rather than G13 (lr44).