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Armadale Academy Mathematics Department on Twitter: "Casio Scientific Calculators for £5.50 in Tesco. Black / Pink. At exam time these go up to about £12, get it now! https://t.co/noDc2pRfp7" / Twitter
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Casio FX-83GT Plus + Calculator Case by SafeCase + Extended Warranty : Amazon.co.uk: Stationery & Office Supplies
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