Other crossword clues for answer "SLIDERULE"SLIDERULETool that can help you with your rootsCalculator 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 deviceObsolete math aidOld 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