Centroid

Three rounds of rising difficulty show clusters of shapes, from three or four pieces up to seven or eight. One click per round marks where the combined center of mass should be, and accuracy is scored out of ten. The three round scores add up to a total out of 30 for comparison.

Category

Estimation, Math

How you play

Estimate a number

Languages

Any (no reading needed)

Daily puzzle

Yes

• 7.2
  Fermi

  Estimate answers to three Fermi problems
  Play
• 6.9
  Guess The Angle

  Estimate a drawn angle in degrees
  Play
• 6.8
  Angle

  Guess an angle's size in degrees
  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