https://itunes.apple.com/us/app/4th-grade-math-common-core/id955124803?mt=8
LogTera 4th Grade Math provides the most comprehensive learning in a fun game for children 6 to 10 years old. Exciting games like Chicken Jump, Candy Cruncher, Moon Rover Trouble, Mars Alien Attack and Personalized Avatars, keep children engaged, and motivate them to learn new skills. Children answer math questions to earn coins, which they use to unlock different levels and games. Dinah dinosaur - the guide - helps children navigate through the game. Kid friendly rich graphics, animations, voices, and intuitive touch, click, drag and drop style, easy to use question templates allow children to work without parent or teacher supervision
