The Casio fx-85GT CW+ is the UKs best-selling Dual Powered Scientific Calculator (replacing the now discontinued fx-85 GT CW), and is now made using up to 90% recycled materials. Recommended and approved for Key Stages 3 & 4 (including GCSE, National and Higher, Junior and Leaving). Allowed in every UK exam where a calculator can be used. Made using up to 90% recycled materials and containing all the same features and functions as the fx-83GT CW+ but with the added benefit of being solar powered (with battery backup) and auto power-off.​ Clip-on protective hard cover included​ 290+ functions​ Free 3 year guarantee included ​ The fx-85GT CW+ is available in; space black, ice white, sky blue and sea green.​ This model is made using up to 90% post-consumer recycled (PCR) materials, dependent on the colour model (45% recycled materials for colour versions). ​ Reliable and Durable: Built for Learning. Made to Last.​