# Math 24 - Mental Math Cards — A math puzzle of 4 cards > Arithmetic puzzle game combining four numbers to equal 24 using basic operations. (iPhone/iPad app by Peikun Duan.) - Source: https://appshunter.io/ios/app/math-24-mental-math-cards/id1274499822 (this page in markdown: same URL + `.md`) - Developer: [Peikun Duan](https://appshunter.io/developer/1240254007) - Category: Games, Education, Puzzle, Trivia - Price: Free with in-app purchases - Rating: 4.70/5 from 2,071 App Store ratings · 92 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 33 MB - Languages: American English, Arabic, Armenian, Catalan, Czech, Danish, Dutch, Finnish, French (France), German (Germany) and 23 more - Released: 2017-08-30 - Data updated: 2026-08-29 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/math-24-mental-math-cards/id1274499822/reviews.md ## What is Math 24? Math 24 - Mental Math Cards is a classical math puzzle game. The game is designed to help people of all skill levels improve their arithmetic abilities and mental math skills. Elementary school students can also play it. But you may not solve some questions even you are a graduate student! ■ How To Play The rules are simple. Combine 4 numbers into 24 by addition(+), subtraction(-), multiplication(×) and division(÷). For example, try to use these 4 numbers: 2048 to make 24. The answer is (2+0)×(4+8)=24. The question is easy, but some questions are much more difficult. You can try this: 6 6 5 9 to make 24. ■ Stage Mode 15 stages and 300 well designed levels in total. The stages are from "Baby" to "King of Math", from easy to difficult. Touch the help button at the top-right corner if you can't solve a question. There are 3 chances to use help button in each stage. ■ Speed Mode 10 random questions! Make 24 as fast as you can! Touch the garbage can button at the top-right corner to change a question. There are 3 chances to change a question in each game. ■ Game Center "Math 24" is fully integrated with Game Center - providing both Leaderboards and Achievements. The Game Center features allow you to test your skills against the rest of the world and to share your scores and accomplishments with friends. ■ Features - Well-designed levels - Best user experience and graphics - Exciting speed mode ■ The App is suitable for you - If you like sudoku, brain training, math game or puzzle game. - If you want to play with friends or family. - If you want to improve you math skills, especially the mental math skills. Have fun! ## Key features - Combine four numbers to make 24 - Addition, subtraction, multiplication, division - Stage mode with 300 levels - Speed mode for timed challenges - Game Center leaderboards and achievements - Help button for difficult questions ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $2.39 | one-time | | 20 Tips + Remove Ads | $3.99 | one-time | | 12 Tips | $1.39 | one-time | | 20 Tips | $2.39 | one-time | ## What do users think of Math 24? Overall sentiment: positive **Pros** - 🚀 Fun and challenging - 👍 Helps improve math skills - 👍 Great brain training - 👍 Convenient and accessible **Cons** - 🙄 Too many ads - 🐛 Bugs and issues with ads - 🙄 Levels too difficult **Commonly reported bugs** - Incorrect solutions provided - Ads not working properly - Syncing issues across devices **Most requested features** - Add negative numbers and more features - Option to favorite/save questions - Difficulty levels (easy, medium, hard) ## Recent user reviews (10 of 92) All indexed reviews: https://appshunter.io/ios/app/math-24-mental-math-cards/id1274499822/reviews.md ### 5/5 — Math 24 review *2026-07-13, version 3.1.0* Great for children’s education and lets your child practice their patience. You can do it with your child and see who can solve it faster. Great app!!! ### 5/5 — Five stars but one issue *2026-07-07* When I’m playing the game is says now internet even with full bars so I’d have to reload the game to play and then happens again ### 2/5 — Too many advertisements *2026-06-29, version 3.1.0* Has potential but the entire experience is ruined by bombardment of ads. ### 5/5 — Kori’s review *2026-05-31, version 3.1.0* It helps me a lot ### 5/5 — Review *2026-05-29, version 3.1.0* Excellent ### 5/5 — Yes yes yes *2026-05-21, version 3.1.0* Math 24 is great! It helped me learn subtraction,addition,multiplication,and division. It also helped me expand my facts. Kids if you see this it is free and fun! ### 4/5 — To many adds *2026-05-16, version 3.1.0* I Love this game. It helped me better understand math24, but there is to many adds. ### 4/5 — It’s a pretty good concept. *2026-05-07, version 3.1.0* I like the idea of trying to put the game onto electronics just it doesn’t have the same feeling as the original game ### 3/5 — Fine *2026-04-26, version 3.1.0* I enjoy this app a lot but the only thing is I don’t like how you have to watch 2 ads in order to do the exam for each level. ### 4/5 — :) *2026-04-14, version 3.1.0* The app is great but I think I just have a skill issue ## Frequently asked questions about Math 24 ### What is Math 24 - Mental Math Cards? Math 24 - Mental Math Cards is a classical math puzzle game designed to enhance arithmetic abilities and mental math skills. Players use four given numbers and basic arithmetic operations (+, -, ×, ÷) to achieve a result of 24. ### How do you play Math 24? The objective is to combine four numbers using addition, subtraction, multiplication, and division to equal 24. For example, using the numbers 2, 0, 4, and 8, one solution is (2+0)×(4+8)=24. ### What are the different game modes? The app offers a 'Stage Mode' with 15 stages and 300 levels of increasing difficulty, and a 'Speed Mode' where you solve 10 random questions as quickly as possible. ### Is this app suitable for children? Yes, the app is suitable for elementary school students and can help them improve their arithmetic abilities. However, some puzzles are designed to be challenging even for adults. ### Does the app have any in-app purchases or ads? Yes, the app is free to download and play but includes in-app purchases and advertisements. ## Version history (last 5 releases) ### 3.1.0 — 2025-12-01 Fix bugs and improve user experience. ### 3.0.0 — 2025-06-30 Fix bugs and improve user experience. ### 2.9.1 — 2024-11-13 Significantly reduced ad frequency for a smoother gaming experience! ### 2.9.0 — 2024-08-23 Fixed the issue where leaderboard submissions in Stage Mode were not working. ### 2.8.0 — 2024-08-22 Fix bugs and improve user experience. ## Apps similar to Math 24 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Calcul Mental in Space](https://appshunter.io/ios/app/calcul-mental-in-space/id1510484802) | 4.4 (572) | Free | Games | | [Mental Math Cards Games & Tips](https://appshunter.io/ios/app/mental-math-cards-games-and-tips/id500595081) | 4.6 (57,819) | Free | Games | | [Math Puzzle Games - Crossmath®](https://appshunter.io/ios/app/math-puzzle-games-crossmath/id1671991909) | 4.9 (254,486) | Free | Games | | [Multiplication Math Flashcards](https://appshunter.io/ios/app/multiplication-math-flashcards/id960948021) | 4.4 (1,111) | Free | Games | | [Crossmath Games - Math Puzzle](https://appshunter.io/ios/app/crossmath-games-math-puzzle/id6479285414) | 4.9 (5,312) | Free | Games | | [Math Games - Mental Arithmetic](https://appshunter.io/ios/app/math-games-mental-arithmetic/id1563412766) | 4.6 (487) | Free | Games | ## More apps by Peikun Duan - [Balloon Pop Game - For Family](https://appshunter.io/ios/app/balloon-pop-game-for-family/id1242716590) - [Balloon Pop Game - Without Ads](https://appshunter.io/ios/app/balloon-pop-game-without-ads/id1243393764) - [Feed Happy Fish - Your Pet Fish](https://appshunter.io/ios/app/feed-happy-fish-your-pet-fish/id1244026110) - [Happy Fish - Baby Aquarium](https://appshunter.io/ios/app/happy-fish-baby-aquarium/id1261819681) - [Happy Baby Plant Tree](https://appshunter.io/ios/app/happy-baby-plant-tree/id1269406669) - [Memory Training - Have Fun](https://appshunter.io/ios/app/memory-training-have-fun/id1271405913) All apps by Peikun Duan: https://appshunter.io/developer/1240254007 ## Related topics [24 game](https://appshunter.io/ios/topics/24-game) · [math 24](https://appshunter.io/ios/topics/math-24) · [math 24 global game](https://appshunter.io/ios/topics/math-24-global-game) · [the 24 game](https://appshunter.io/ios/topics/the-24-game) · [game math 24](https://appshunter.io/ios/topics/game-math-24) · [mental math cards challenge](https://appshunter.io/ios/topics/mental-math-cards-challenge) · [24](https://appshunter.io/ios/topics/24) · [efhub24](https://appshunter.io/ios/topics/efhub24) · [synthesis24](https://appshunter.io/ios/topics/synthesis24) · [mental math games and puzzles](https://appshunter.io/ios/topics/mental-math-games-and-puzzles) · [learn mental math quiz games](https://appshunter.io/ios/topics/learn-mental-math-quiz-games) · [pilot mental math trainer](https://appshunter.io/ios/topics/pilot-mental-math-trainer) · [tok tok math challenge lite](https://appshunter.io/ios/topics/tok-tok-math-challenge-lite) · [consulting mental math](https://appshunter.io/ios/topics/consulting-mental-math) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*