The SL-450 calculator is designed with many unique functions
and features to help beginning math students and their teachers.
The SL-450 is equipped with an 8-digit, easy to read LCD display,
as well as a square root, percent, and +/- key. Function signs
are shown on the display so student can clearly see at all time
what function they are performing.
The SL 450 is solar powered and never needs batteries. It also
is equipped with an independent memory capable of storing and
totaling the results of a series of calculations.
8-digit LCD display
Floating negative sign appears to the
left of the number displayed
Function signs in display
Percent, square root, memory, and
Instructional materials available in
English and Spanish