Combine four numbers with +, −, × and ÷ to make exactly 24. Three solvable puzzles, no countdown, and unlimited undo.
Loading your game…
Results stay in this browser. No account needed.
Choose a number, an operation, and a second number. The two tiles merge into their result.
Keep combining until just one tile remains. Use every original number once and make that final tile exactly 24.
Subtraction and division follow your selected order. Fractions and negative intermediate values are allowed; division by zero is not.
Undo or reset as often as you want. Show solution gives one answer but earns no point for that puzzle. Continue through three puzzles, then select Finish round to save.
Make 24 gives you four number tiles and lets you build a calculation with direct taps. Each merged tile keeps the expression that produced it, so you can see how the pieces fit together. A round contains three different solvable number sets. Intermediate fractions stay exact rather than being rounded, and equal-valued tiles are separate pieces you may each use once.
A completed round saves the number of puzzles solved without revealing a solution, from 0 to 3; higher is better. Undo and Reset numbers are free. Show solution gives 0 for that puzzle. Select Finish round after the third puzzle to save; starting a new round discards unfinished results.
More about your scores →With 2, 3, 4 and 6, combine 2 + 4 to make 6, then 3 × 6 to make 18 using the original 6 tile. Finally combine the remaining 6 and 18: 6 + 18 = 24. All four original numbers were used exactly once.
To finish with 4 × 6, think about which two groups of tiles could make 4 and 6. You are free to build separate intermediate results before combining them.
Selecting 8, then division, then 2 makes 4. Selecting 2, division, then 8 makes 1/4. Tap a selected number again to clear the selection before choosing a different route.
Look for factor pairs of 24, such as 3 × 8, 4 × 6, or 2 × 12.
You can combine two pairs separately before bringing their results together.
If a route ends at another value, undo a step instead of restarting the entire round.
Results describe this game session. They are not IQ scores, diagnoses or clinical assessments.
Yes. Reaching 24 while other tiles remain is not a solution. Combine everything into one final tile showing 24.
The order of your merges supplies the parentheses. Division can produce fractions, which remain exact in later operations. You do not need to type an expression.
Yes. Every set in this medium collection has at least one solution using only whole-number intermediate results. Fractions are also allowed if you find another route.
No. Experiment as much as you like. Only Show solution removes the point for that puzzle; finish all three puzzles to save the round.
Checking this browser’s completed games…
Complete one run in each game. Replays improve your personal best, not the completed-game count.
View my progress →
