Fermi

Three Fermi-style questions are posed each day, such as how many Oreos are eaten in the US daily, each allowing a single guess with a built-in calculator. Scores express how many times off the guess was, and results include sample napkin-math reasoning and a distribution of how all players guessed.

Category

Estimation, Math

How you play

Estimate a number

Languages

English

Daily puzzle

Yes

• 6.9
  Guess The Angle

  Estimate a drawn angle in degrees
  Play
• 6.8
  Angle

  Guess an angle's size in degrees
  Play
• 6.8
  Centroid

  Click the center of mass of a shape group
  Play
• 6.6
  Angled

  Rebuild a briefly shown angle from memory
  Play
• 6.5
  Counted

  Estimate how many objects flashed on screen
  Play
• 5.9
  Packle

  Guess how many circles fit inside a shape
  Play
• 5.9
  Angledle

  Find an angle between 1 and 359 degrees
  Play
• 5.8
  What's the Area?

  Find the point that splits a shape evenly
  Play