Use all four numbers with basic operations to make 24
Create an equation using all four numbers exactly once with +, -, ×, ÷ and parentheses to equal exactly 24. This tests your arithmetic fluency and creative problem-solving under time pressure.
Start with Easy mode, focus on finding at least one solution per puzzle. Progress to Medium when you solve 80% of puzzles. Attempt Hard mode when you can solve most puzzles in under 2 minutes.
Easy (5 min): Learn mechanics, unlimited hints
Medium (3 min): Standard challenge, limited hints
Hard (2 min): Competitive speed, minimal hints
Each level generates progressively more complex number combinations.
Example: 3rd puzzle in a streak = 10 × 4 = 40 points
Look for factors of 24 (3×8, 4×6, 12×2)
Scan for easy combos first before complex ones
Use ( ) to force multiplication/division first
Common patterns: a×b+c×d, (a+b)×(c-d)
This game generates unique number combinations each round. With four numbers 1-9, there are thousands of possible puzzles. Track your progress through:
Algorithmic Fairness: All puzzles are mathematically solvable. The random generator ensures equal challenge distribution.
Scoring Transparency: Points calculated consistently using published formula. No hidden penalties or bonuses.
Practice Mode: Use Easy difficulty for unlimited practice. No penalties for using hints during learning.
Competitive Disclaimer: Scores reflect skill, reaction time, and strategy. Internet connection and device performance may affect timing accuracy.
10 minutes daily improves calculation speed by 40% in 2 weeks
Monitor your streak length and average solve time
Challenge friends to beat your high score or fastest time
Game Version 2.5.1 | Updated September 2025 | All game mechanics and scoring logic remain unchanged in this enhancement.
Challenge yourself, improve your mental math, and have fun! Every puzzle solved strengthens your numerical reasoning skills.