Practice Room · Seconds, minutes and hours

Practice: Clockwork

For each question, give a low and a high you are 80% sure the answer sits between. Tighter brackets score more; a miss scores zero. You can type 2 million, 3e9, 1.5k or 45%.

Practice rounds are a Network Pass feature: $1.95 a month, $19.50 a year, or a $1.00 Day Pass · Free during preview. They never count on league boards.