Make 24
Combine four numbers with operators to make 24.
↑ This is Make 24 running right here in your browser — no download needed.
About the game
Make 24 is a mental-math puzzle: given four numbers, use addition, subtraction, multiplication, and division to reach exactly 24, using each number once.
How to play
Pick two numbers and an operator, combine them, then continue with the result and remaining numbers until you reach 24. Each of the four must be used once.
Tips & strategy
['Look for factor pairs of 24 (3x8, 4x6, 2x12).', 'Save multiplication for combining close numbers.', 'Use subtraction to reduce overshoots.']
Advanced guide
Crack Make 24 by targeting factors. Mentally factor 24 into pairs like 4x6 or 3x8, then see if your numbers can construct those factors. Reserve multiplication for the final combine and use subtraction to pull an overshoot back to exactly 24.
History & origins
A popular classroom brain teaser, Make 24 trains arithmetic fluency and combinatorial thinking.
Frequently Asked Questions
Can I use parentheses?
Yes - operation order is up to you as you combine step by step.
What if no solution exists?
Some four-number sets are unsolvable; good puzzles are checked.
Must I use all four numbers?
Yes, each exactly once.
Which operations are allowed?
Addition, subtraction, multiplication, and division.
Is there a fastest method?
Factor 24 first, then build those factors from your numbers.
Can decimals appear?
Division may create fractions; you must still end exactly at 24.
Where can I play Make 24 for free?
Right on this page — Make 24 is embedded above, free, legal, and with no download or sign-up. Play with your keyboard on desktop or touch controls on mobile. Your best score is saved in your browser, so it's still there next time. Every game here is original or open-source, with links that stay valid.