How to set Decimal Places on the Sharp EL-531 Scientific Calculator - YouTube
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Converting from a decimal to a fraction using your Sharp EL-531W - YouTube
Virtual Museum of Calculators
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Sharp Elsimate EL-531A 61 Function Scientific Calculator - Jack Berg Sales
Virtual Museum of Calculators
Virtual Museum of Calculators
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How to set Decimal Places on the Sharp EL-531 Scientific Calculator - YouTube
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How to Calculate Mean and Standard Deviation on Sharp EL-W531 - YouTube