๐ 24 Game ๐
The classic 24 card game! Given 4 random numbers, combine them using +, โ, ร, รท to reach exactly 24. Every number must be used exactly once. Choose your difficulty (1โ6, 1โ9, or 1โ13), build a streak, and beat your best time!
How To Use
Tap any number card to select it (it turns amber). Then tap an operation (+, โ, ร, รท). Finally tap a second number โ the two cards merge into their result. Repeat until only one card remains. If it shows 24, you win! Use Undo to reverse mistakes, or Hint to see a solution. Skipping or hinting breaks your streak.
Key Features
Classic 24 Game โ combine 4 numbers using +, โ, ร, รท to reach exactly 24
Three difficulty levels: Easy (1โ6), Medium (1โ9), Hard (1โ13 like a deck of cards)
Every puzzle is guaranteed solvable โ a recursive solver checks before presenting
Step-by-step card combination: tap a number, tap an operation, tap another number
Intermediate 'combo' results shown as new cards (e.g. combining 3+5 creates an 8 card)
Undo last combination at any time
Reset to original 4 numbers with Try Again
Hint button reveals a complete solution expression
Streak counter โ build consecutive solves without hinting or skipping
Best time and best streak tracked per difficulty in your browser
What Is This?
The 24 Game (also called 'Make 24' or '24 Point') is a classic math card game where players race to find an arithmetic expression using 4 given numbers that equals exactly 24. It's been a classroom staple for decades, sharpening mental arithmetic and creative thinking. Every number must be used exactly once; operations can be any of +, โ, ร, รท.
Why Use This?
The 24 Game is one of the best ways to improve mental arithmetic speed and flexibility. It's deceptively simple yet endlessly challenging โ some four-number combinations require clever tricks like (8รท(3โ8รท3)). Whether you're a student sharpening your math skills or an adult keeping your brain sharp, this game offers infinite fresh puzzles.
Frequently Asked Questions
Do I have to use each operation exactly once?
No! You use each of the 4 numbers exactly once, but you can use any operations in any combination. You apply 3 operations in total to combine 4 numbers into 1. For example: (3+5)ร3 uses + and ร but not โ or รท, and that's perfectly valid if the result is 24.
Are all puzzles guaranteed to have a solution?
Yes โ the game runs a recursive brute-force solver before presenting any puzzle. If the randomly chosen numbers can't make 24, it tries again. So every puzzle you see is confirmed solvable.
What do the difficulty levels mean?
Easy uses numbers 1โ6, which tend to have simpler, more obvious solutions. Medium uses 1โ9 (the standard difficulty). Hard uses 1โ13 like a playing card deck โ face cards equal 10, 11, 12, or 13 โ producing trickier combinations that often require division.
What is a 'combo' card?
When you combine two number cards, they merge into a single 'combo' card showing the result. For example, combining 3 and 5 with + creates a combo card showing 8. You can then use this combo card in further calculations just like a regular number card.
Does hinting or skipping affect my streak?
Yes โ using a Hint or clicking Skip resets your streak to 0. Only consecutive successful solves (without hinting or skipping) count toward your streak.