Guess the secret number using higher-or-lower clues. A quick educational game for estimation, number sense, and logical thinking.
Guess the Secret Number
Choose a range, then guess a number. The game tells you whether to go higher or lower.
Can you guess it within 10 attempts?
Guesses: none
The secret number is created in your browser and isn’t saved.
How to play
Use higher-or-lower hints to narrow down the mystery number. Players have 10 attempts per round.
- Choose a range: 1–20, 1–50, or 1–100.
- Enter your guess and select Check guess.
- Follow the higher or lower feedback.
- Find the answer within 10 attempts, or start a new round.
Classroom activity ideas
Have students explain how each clue changes the remaining possible range. Encourage them to guess around the midpoint rather than selecting numbers without a strategy. Teachers can pair students and ask them to justify each guess.
Related classroom activities
Practice numbers another way with the Virtual Dice Roller or the Quick Math Challenge.
Frequently asked questions
Is this activity free?
Yes. It runs directly in your browser without requiring student accounts or downloads.
How many guesses do players get?
Players have up to ten guesses to find the mystery number in each round.
Can I change the range of possible numbers?
Yes. Choose a range of 1–20, 1–50, or 1–100 before starting a new round.
What happens when a guess is incorrect?
The game tells the player to guess higher or lower, helping them narrow the possible answers.