fx-991ES PLUS | ES PLUS Series -Non Programmable- | SCHOOL & LAB. | Calculators | CASIO
Casio FX-991EX Engineering/Scientific Calculator, Black, 3" x 6.5" x 0.4"
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Casio ClassWiz FX-991EX Scientific Calculator - ONLINE ONLY:Wayne County Community College
Casio FX-991EX Engineering/Scientific Calculator, Black, 3" x 6.5" x 0.4"
Got ahold of a Casio fx-991ex and CG-50 to match my Classpad II. I'm really impressed with them but there is something about the fx-991ex... (see comments) : r/calculators
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Getting Started with Casio Classwiz FX-991EX FX-87DEX FX-570EX Calculator - YouTube