- iOS App Store
- Free
- Theodor Mueller
- Games, Trivia
Based on 50 votesRelease Date: November 2013Last Update On: January 2019
The classic with over a million downloads! From the reviews: "Great little App" "Easy and efficient" "Wonderful and fun" Boost your gray matter now! Here's a quick check: What's 7 × (4 + 9)? N...