Casio 2nd edition FX-300MSPLUS2 Scientific Calculator is perfect for Elementary, Jr. High and High School students. Has a sleek design with a 10-Digit 2-Line Display, 240 Built-in Math Functions and is solar powered with a battery backup so you will not loose power. Recommended for General Math, Pre-Algebra, Algebra 1 and 11, Trigonometry, Statistics and General Science and it is approved for SAT, ACT, AP, PSAT/NMSQT tests.