Casio FX-991CW Advanced Scientific Calculator

Casio FX-991CW Advanced Scientific Calculator Casio fx-991 is the UK’s best-selling ‘advanced scientific’ calculator. Fx-991 CW is the new upgraded version of the Fx-991 EX 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 Dual powered, solar with battery back up and auto power-off

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