SciMaster vs Mental Math 24

SciMaster is the world's first general-purpose scientific research agent, dedicated to becoming "your AI scientist friend." It possesses core scientist-like capabilities and can execute the entire process of "reading, calculating, doing, and writing" in scientific research in a closed loop.

Turn four numbers into 24 and sharpen your mental math. Mental Math 24 gives you verified number puzzles from 1 to 13. Use every number exactly once with addition, subtraction, multiplication, and division. Combine two items at a time, keep each result, and build your way to 24. WHY YOU'LL ENJOY IT • Four difficulty levels for different skill levels • More than 1,300 verified, solvable puzzles • Fast two-item calculation controls with a visible step history • Three progressive hints that guide without revealing everything at once • Alternative structural solutions for deeper learning • Timed challenges, grades, and local performance history • Core puzzles work offline Need help? Watch one rewarded video to unlock all three hints for a puzzle. Alternative solutions are separate learning content. A one-time Lifetime Pro purchase opens hints and solutions instantly without ads. Whether you want a quick daily brain workout or a serious arithmetic challenge, Mental Math 24 makes every path to 24 clear, playful, and rewarding.