Score
0
Time
90s
Best
—
A quick number puzzle: combine all four numbers with +, −, ×, ÷ so the last one left is exactly 24. Every hand is solvable — how many can you crack in 90 seconds?
Four numbers appear. Tap one number, tap an operator, then tap a second number — the two merge into a single result, leaving you one number fewer.
Keep combining until just one number remains. If it is exactly 24, you score and a fresh set appears. If it is anything else, the cards flash and the four starting numbers come back on their own after 0.6 seconds, so you can try another route. The order you pick matters for − and ÷ (the first number tapped comes first). Results can become fractions along the way and are kept exact, but every hand you are dealt can be solved using whole numbers at every step.
If you back yourself into a dead end before the last step, tap Reset to restore the four starting numbers. Every hand is guaranteed to have at least one solution.
You have 90 seconds. Your score is how many hands you make 24 from, so find the path quickly and move on.
Learn the handful of pairs that already make 24, and scan for them first: 4×6, 3×8, and 2×12 are the backbone of most hands. The moment you see a 4 and a 6, or any way to build an 8 to pair with a 3, you often have the whole solution in one glance.
When no clean product jumps out, work backwards from 24. Ask what two values, combined, give it: 24 is 20+4, 30−6, 48÷2, and so on. Then treat the rest of your numbers as raw material for building one of those two targets, which turns a vague search into two much smaller ones.
Fractions are a detour here, not a key. Every hand is dealt so that it can be solved with whole numbers at every step, so if you find yourself holding something like 8/3, you have usually wandered off the short path. The game does keep fractions exact, so a fractional route still counts if you see one, but the fastest habit is to stay with whole numbers: prefer divisions that come out even, such as 8÷2 or 12÷3, and treat an uneven division as a sign to reset.
In the timed mode, speed comes from pattern recognition, not brute force. If a hand does not resolve within a few seconds, reset and re-read it from scratch rather than grinding a dead line — a fresh look at the same four numbers very often reveals the 4×6 or 3×8 you walked straight past.