three-digit number
Between 100-999
A three-digit number is any whole number from 100 through 999—numbers written with exactly three digits.
The term appears most often in educational contexts: Students practiced adding three-digit numbers.
It also describes codes, PINs, and identifiers: Enter the three-digit security code on the back of your card.
- hundredTen squared
- countingDetermining quantity sequentially
- onesSingle items or dollars
- place valueDigit worth by position
- tensGroups of a dozen minus two
hundreds · integer · code · combination · safe combination · lock · PIN · social security · credit card · zip code · phone · address · lottery · winning numbers · lucky · unlucky · random · sequence