SOFTWARE FOR MATH TRAINING. Full version has new colors and more challenges.For kids 6 years old and overStep 1: download and install version from Android MarketStep 2: Start training and reach each goalStep 3: if you want to customize rank, an upgrade version for small fee (e-mail me)New rank represented by images: Image SUN: reach at least total 50 🙂 Image STAR: reach at least total 100 🙂 Image FLOWER: reach at least total 200 🙂 Image BUTTERFLY: reach at least total 300 🙂