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Mental Math 24: Number Puzzle

FOUR NUMBERS. ONE LITTLE OBSESSION.

Make
24.

Add. Subtract. Multiply. Divide. Use every number once. A quick brain workout that keeps you coming back for one more puzzle.

Download on the App Store

iOS 15.1+ · Core puzzles work offline

TRY A LITTLE ONE
3388

Can you make 24?
Use + − × ÷ and parentheses.

Reveal a solution

8 ÷ (3 − 8 ÷ 3) = 24

A taste of the 24 game. Find more in the app.

1,300+solvable puzzles
4difficulty levels
3progressive hints
Mental Math 24 arithmetic puzzle with numbers and calculation controls

Less guessing.
More “got it.”

The 24 game is simple to learn: combine two numbers, keep the result, and repeat until you reach 24. Every original number must be used exactly once. The interesting part is finding the path.

01

See your thinking.

Visible step history keeps each calculation clear. Try alternative structural solutions to explore a different path.

02

A nudge when you need it.

Three progressive hints guide you through the puzzle. Hints can be unlocked with a rewarded video; Lifetime Pro opens hints and solutions without ads.

03

Find your challenge.

Choose from four difficulties. Timed challenges, grades and local history help you follow your own progress.

A good puzzle meets you where you are.

01

Beginner

02

Standard

03

Advanced

04

Master

A few minutes on the train. A quiet break at home. Core puzzles work offline, so a little mental math can fit into your day.

A few things to know.

Answers before you download.

How do you play the 24 game?

Use four numbers exactly once, with addition, subtraction, multiplication, division and parentheses, to make 24. For 3, 3, 8 and 8, one solution is 8 ÷ (3 − 8 ÷ 3).

Can I play offline?

Core puzzles work offline. Optional rewarded ads and App Store purchases need a network connection.

How do hints and Pro work?

A rewarded video unlocks three staged hints for a puzzle. Alternative solutions are separate content. A one-time Lifetime Pro purchase opens hints and solutions without ads.

One more puzzle?

Start with four numbers. See where your mind goes.

Download on the App Store

Download and current purchase options on the App Store.

Mental Math 24: Number PuzzleGet the app ↗