How to convert between Fractions and Decimals on the Casio fx-300 ES Plus Calculator - YouTube
File:Casio fx-300ES PLUS Black Calculator.jpg - Wikimedia Commons
Casio FX-300ESPLUS2 Scientific Calculator Natural Textbook Display, Black - Walmart.com
Amazon.com : Casio fx-300ES PLUS Scientific Calculator; SAT Compatible; Natural Textbook Display; Math, Trigonometry, Statistics, Algebra, Geometry and Physics Functions; Comes with Slide-on Hard Case; Black : Office Products
Eddie's Math and Calculator Blog: Review: Casio fx-300MS 2nd Edition