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টুইটারে SLGSM: "Casio FX83GTX Scientific Calculators currently on offer in Tesco stores and online for £10 (usually £14). These are the recommended calculator for all St Louis Kilkeel pupils from Year 9
SCIENTIFIC CALCULATOR BY Tesco New And Sealed - £3.90 | PicClick UK
Casio Fx 83 Gtx Scientific Calculator - Tesco Groceries