Casio - FX-82MS. I bought it in high school, used it in University and now on my 4th year as a Professional Accountant. Haven't changed the battery once. : r/BuyItForLife
Casio FX-82MS 2nd Edition Calculator Black | Kidinn
Casio FX82MS Original Scientific Calculator – Webresource Hub
Working With Fractions on The Casio fx-82MS - YouTube
Calculus - Finding Limits using Casio fx-82MS Scientific Calculator + Demo on Casio fx-9860GII - YouTube
Is Casio fx-82MS allowed at SAT test center? Asking this cause college board's eligible calculator list doesn't mention the Casio fx-82 series. : r/Sat