Make 24 Calculator Game
Play the Make 24 calculator game online. Use four displayed numbers exactly once with +, −, ×, ÷ and parentheses to create 24. Every puzzle has a verified solution.
Make exactly 24
Use each of the four numbers exactly once. You may use +, −, ×, ÷ and parentheses. Standard order of operations applies.
How to Play Make 24
Make 24 is a classic arithmetic puzzle. Four numbers are shown, and your job is to create an expression that equals exactly 24. Every displayed number must be used once and only once. You may use addition, subtraction, multiplication and division, and you can add parentheses to change the order of operations. For example, if a puzzle contains 8, 2, 7 and 3, you might look for ways to create useful factors such as 6 and 4.
Verified Puzzle Set
The game uses a pre-verified set of solvable number combinations. Each stored puzzle was checked by a solver that explores arithmetic combinations and parentheses, so the game does not intentionally present an impossible round. The Hint button reveals one valid solution for the current puzzle. You can still look for a different solution because many Make 24 puzzles have more than one valid expression.
Expression Checking Without Free-Form Code
The answer box accepts numbers, arithmetic operators and parentheses. The game parses the mathematical expression and checks that the exact four displayed numbers were used. It does not treat arbitrary text as executable code. If you forget a number, reuse a number, include another value, leave a parenthesis open or divide by zero, the game shows a clear message instead of accepting the expression.
Strategies for Solving 24 Puzzles
A useful strategy is to think of factor pairs of 24: 1×24, 2×12, 3×8 and 4×6. See whether the four numbers can be turned into one of those pairs. Another approach is to make 24 by adding or subtracting from a nearby product, such as 5×5−1. Fractions can also help in harder puzzles, because division may create a value that becomes useful after multiplication. If you are stuck, use the hint as a learning example and then try the next puzzle without help.
Frequently Asked Questions
Are the Make 24 puzzles solvable?
Yes. The included puzzle set was verified to have at least one solution.
Can I use parentheses?
Yes. Parentheses are allowed and standard order of operations is used.
Must I use every number?
Yes. Each displayed number must be used exactly once.