The New Casio ClassWiz has arrived. The Casio fx-991CW+ UK is the new upgraded version of the Casio fx-991 CW (Casio's most advanced scientific calculator). The fx-991CW+ UK is now even better and includes all the functionality you will find in an entry level scientific calculator and more, with further improvements based on feedback directly from teachers and educators. Allowed in every UK exam where a calculator can be used. Approved for Key stages 3, 4 and 5. Recommended for Advanced GCSE, A/AS level and Highers. Improvements: New functionality, such as HCF, LCM and recurring decimals S<>D is easily accessible in one-press via the updated FORMAT key toggle Shortcuts readily available in all menus using the represented number keys for efficient navigation Standard Form conversion via [shift] FORMAT menu [shift] CATALOG provides quick access to most used functions * Model: fx-991 CW+ UK * Large and clear HD Natural Textbook Display, shows mathematical expressions as they appear in textbooks * 540+ functions including solving quadratics, inequalities and finding distributions * Designed and optimised for UK curriculums * Practical apps for teaching, learning and assessment * Solar powered with battery back-up and auto power off * Intuitive key layout and menus, quick and easy to navigate to access more functionality * 4-tone input display with an improved font * Responsive keys that work when pressed at any angle * Clip-on on protective hard cover included * 3 year guarantee included * Colour Black