% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Other crossword clues for answer "SLIDERULE"

SLIDERULE
Tool that can help you with your roots
Tool once used with logs
Calculator predecessor
Pre-calculator calculator
Antiquated calculator
Outmoded calculator
Low-tech calculator
Calculator's ancestor
Obsolete calculating tool
Obsolete math-class tool
Calculator ancestor
Hand-held calculator of yore
Instrument with scales
Obsolete calculator
Mathematical shortcut device.
Calculator.
Calculating instrument.
Manual calculator.
Invention of 1620
Logarithmic instrument
Criterion for Kelly
Calculating device
Old tool for working on logs
Old math calculating tool
Calculator made obsolete by the calculator
Device also known as a slipstick
Linear multiplier?
Pocket calculator predecessor
Old engineering tool
Old calculator
Tool for obtaining products made with logs