8 digits LCD Display
Solar Powered Casio watches with solar technology, receive thermal and electrical energy that recharges the watch batteries through solar panels on th
Floating negative sign appears to the left of then number displayed
Function command signs in display
Hard, plastic tamperproof keys
Basic function: plus, percent, plus/minus, square root, memory keys
Constants for +/-/x/÷
Ability to clear last and/or all entries

At a glance

All basic calculators are not equipped equally. Casio’s SL-450S reaches beyond the basics with many unique functions and features designed to help beginning math students and their teachers.


1-Line/# of Digits 8
Store/Recall Yes / Yes
# of Constant Memories 1
Solar Yes
Automatic Power Down Yes
General Features
Clear Last Entry & Clear All Yes
Math Functions
Operating System Standard
Add, Subtract, Multiply, Divide Yes
Constant Feature Yes
Change Sign (+/-) Yes
X^2/Square Root /Yes
Percent Calculations Yes
Hardware - Other
Protective Hard Case Yes
Color Coded Keys Grouped by Function Yes
Overhead Projectable Model Yes
Instruction Manual Yes
Available in Teacher Packs (10 units) Yes
Available in Classroom Sets (30 units) Yes
Resource Materials Yes

Support Information