Roughly Right
Estimate the result in your head – no exact answers needed – and see instantly how close you were.
Operations
Difficulty
4–5 digits
Time limit per task
–
Best
–
Avg. deviation
0
Rounds
10 tasks per round · up to 100 points each
Estimate the result in your head – no exact answers needed – and see instantly how close you were.
4–5 digits
10 tasks per round · up to 100 points each