Other crossword clues for answer "SLIDERULE"SLIDERULETool that can help you with your rootsTool once used with logsCalculator predecessorPre-calculator calculatorAntiquated calculatorOutmoded calculatorLow-tech calculatorCalculator's ancestorObsolete calculating toolObsolete math-class toolCalculator ancestorHand-held calculator of yoreInstrument with scalesObsolete calculatorMathematical shortcut device.Calculator.Calculating instrument.Manual calculator.Invention of 1620Logarithmic instrumentCriterion for KellyCalculating deviceOld tool for working on logsOld math calculating toolCalculator made obsolete by the calculatorDevice also known as a slipstickLinear multiplier?Pocket calculator predecessorOld engineering toolOld calculatorTool for obtaining products made with logs