Make it yours

Number Puzzles

Estimate It

Skip the counting. How close can your eyes get?

Preparing your challenge…

Five untimed puzzles. Daily progress and personal bests save in this browser. Practice is unlimited. Hints reduce the round score by 15 points; a revealed solution earns 0. No leaderboard or online opponent.

How to play Estimate It

Estimate the colored portion as a percentage of the entire shape. Move the slider and check. A circle shows an angular sector; a vessel or bar shows a filled area.

Choose Daily challenge for today’s shared set, or a practice level for a fresh set. Daily difficulty increases over five rounds. You may retry an incorrect answer; each incorrect check reduces that round’s score by 10. Hints cost 15. Reveal gives the worked solution for 0 points. Reloading resumes your daily round.