significant digit, significant figure
väärtusarvu koht alates vasakpoolseimast numbrist, mis erineb nullist, ja lõpetades viimase õige numbriga, number in positional notation are digits in the number that are reliable and absolutely necessary to indicate the quantity of something, number väärtusarvus, mis on usaldusväärne ja absoluutselt vajalik, et näidata millegi väärtust, specific digits within a number written in positional notation that carry both reliability and necessity in conveying a particular quantity