✓ Effortless Math · Free Game

Guess My Number

Ollie is hiding a secret number! Guess, listen for “too high” or “too low,” and watch the number line shrink until you crack the code.

  • 1Ollie picks a secret whole number.
  • 2Guess! Ollie says “too high” or “too low,” and the number line shrinks.
  • 3Find it in the fewest guesses — pro tip: always guess the middle!
Secret number between