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Getting Started with CASIO FX-991EX FX-570EX CLASSSWIZ Full Manual learn all features - YouTube
Quick Start Guide (fx-991EX/fx570EX)_CASIO
Casio Classwiz FX-991EX FX-87DEX FX-570EX Set Default to display Decimal - YouTube
Casio fx-991EX classWiz user manual and commands. | PDF
Download our 'How To' Manuals | CASIO Education Australia
International Chemistry Olympiad - IChO - For the competition purposes, all the competitors will be given a calculator Casio fx-991EX. The manual for the calculator can be downloaded from the following link:
Casio FX-991EX Classwiz Non-Programmable Scientific Calculator, 552 Functions with Menu Driven Interface, Black : Amazon.in: Office Products