Apps > Paid Apps > Education

Erica Sadun

September 25th, 2012

This app is designed for both iPhone and iPad

Price: $0.99

Category: Education

Released: Sep 25, 2012

Version: 1

Size: 0.5 MB

Language: English

Seller: Erica Sadun

Rated 4+

Requirements: Compatible with iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, iPod touch (3rd generation), iPod touch (4th generation), iPod touch (5th generation) and iPad. Requires iOS 6.0 or later.

twentyfour by Erica Sadun

twentyfour Screenshots


twentyfour is a fun and challenging mathematical recreation. Can you mix 4 digits to create 24? Make a choice a primary number and a 2d number. Mix the usage of plus, minus, times, and divide.

twentyfour is ideal for middle-schoolers but fun for adults, too.

Extra Apps via Erica Sadun



Become a fan of the Fair Apps, iPhone Apps and iPad Apps | iOS Apps from the App Store on Facebook for exclusive offers, the inside scoop on latest and most exclusive iPhone, iPad & iPod apps.