Sharp EL501XBWH EL-501XBWH Scientific Calculator 10-Digit LCD Sold as 1 EA. Ideal for students studying general math, pre-algebra, algebra, geometry and trigonometry. Performs more than 130 scientific and math functions. Hard cover protects calculator from scratches. Auto power down feature. Permitted for use on AP Chemistry, AP Physics, PSAT/NMSQT, SAT I, SAT II, Math IC and Math IIC tests.