Can you make 24?
Combine 24 is the classic math card game loved by families and classrooms for generations — now reimagined as a bright, friendly app you can play anywhere.
The rules are beautifully simple: you get four number cards. Use +, −, ×, ÷ (and parentheses!) to combine all four numbers into exactly 24. That's it. Easy to learn, surprisingly addictive, and a real workout for your mental math.
🎯 GAME MODES
• Daily Puzzle — a fresh challenge every day. Solve it to keep your streak alive!
• Fast Play — race against the clock and solve as many puzzles as you can.
• Magic Solver — stuck on a tricky one? Tap the magic wand to reveal a solution and check your work (no cheating!).
🧠 GREAT FOR EVERY AGE
From kids sharpening their arithmetic to grown-ups keeping their minds quick, Combine 24 turns mental math into a game you'll actually want to play. Teachers and parents love it as a playful way to practice the four operations.
✨ WHY YOU'LL LOVE IT
• Clean, colorful, kid-friendly design
• Only the occasional family-safe ad between games — never during play
• No tracking, no in-app purchases, no social features
• Track your progress with levels and daily streaks
• Play offline, anytime, anywhere
• Optional free account to sync your progress across your devices
👦 A LITTLE STORY
Combine 24 was designed and built by a 10-year-old with a love of numbers — and a little help from AI. We hope it sparks the same joy of math in you and your family.
Grab four cards. Find the 24. How fast can you go?
Make 24 from four cards using + − × ÷. The classic math card game, now an app!