Practice facts with addition, subtraction, multiplication,
Practice basic facts with addition, subtraction, multiplication, and division. Solve randomly generated problems with or without a time limit. Track progress through visual charts. Adjust difficulty for grades 1 to 4.
Learn phytoplankton identification and pronunciation.
The app provides a species identification guide for marine and freshwater phytoplankton. It includes games to help users learn identification and pronunciation, with new species and details added.
Track a hidden under a cup through swaps and moves. Difficulty increases with each level. Compete on Game Center leaderboards. Supports iPhone, iPad, and iPod Touch. Optimized for Retina displays. Rate the in the Store.