Four 4s
A Brain-Training Math Puzzle!
Free · Designed for iPad. Not verified for macOS.
Train your math brain! This math puzzle game challenges you to create expressions using four 4s that result in an integer, generating all integers from 0 to 100.
Four 4s: A Brain-Training Math Puzzle!
Is your brain feeling a little rusty lately?
Introducing "Four 4s," the historic math puzzle born in Great Britain in 1881, now available as an iPhone app!
The rules are very simple. In "Four 4s," you just arrange four "4"s and operator panels like +, -, ×, and ÷ to create an equation.
Your challenge is to make the answer equal every number from 0 to 100.
It looks easy, but it's deceptively deep. Can you use your full insight and mathematical mind to complete all the numbers?
It's as easy as moving the panels with your finger, like "44 × (4 - 4) = 0"!
But... can you make a number like 73?
Loosen up your rigid thinking and have fun training your calculation skills and creativity.
By the time you clear all the puzzles, your math brain will be more powerful than ever!
・ Simple Controls: Just arrange the panels as if you were playing with blocks. It's that easy!
・ Endless Challenges: Once you've conquered the "Four Fours," take on new challenges with "Four 1s" or "Four 3s"!
Achieve great results to unlock a mode where you can play with any numbers you like.
・ Completely Free: The game is supported by ads, so you can enjoy the entire experience for free.
Turn your spare moments into the ultimate brain-training time. Download now!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
We have added a display indicating completion and all-clear status to the puzzle selection menu.
The developer, TADASHI FUKUZAWA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TADASHI FUKUZAWA
- Size
- 126.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
13+
- 13+
- Contains
Advertising
- Copyright
- © 2025 Fukuzawa Technologies