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Casio Makes Scientific Calculator Web Service and Learning Tools Free of Charge to Support Math Study during School Closures
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Casio FX-85MS Scientific Calculator 10+2 Digit 2-Line Display Ergonomic Design : Amazon.co.uk: Stationery & Office Supplies
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Casio FX82 calculator I bought in 1982 at the age of 15. Used it throughout school, my apprenticeship and work as a draughtsman. Don't use it much now but it still works
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