Casio FX-300ES Plus-WE Scientific Calculator. Natural Textbook Display. White. Solar Plus with Battery Back-up. Includes Slide-on Hard Case. Natural - V.P.A.M - Enter expression as written in textbook. Suggested courses: General Math, Pre-Algebra, Algebra I & II, Geometry, Trigonometry, Statistics, Science, and Biology. Permitted on AP, SAT I/II, PSAT/NMSQT & ACT.