Ones
How many 3-digit numbers less than 300 contain the digit one at least once?
Login to Answer
Elementary Brain Teaser
Fun and accessible problems for younger students or beginners. Posted every Monday, these weekly brain teasers kickstart your week with a mental warm-up.
Login to Answer
Individual Rankings
The first 5 to correctly answer this question are shown below.
View All Individual RankingsLeaderboard Rankings
The 5 top-ranked leaderboards for this question are shown below.
View All Leaderboard Rankings