Math Facts Fluency Builder

** Happy Frog Apps is a Mom’s Choice Award Winner! Also featured on FunEducationalApps.com, TeachersWithApps.com, and more! ** Math Facts Fluency: Easy-to-use, built-in rewards and excellent reporting. The only app you'll need to ensure your child is completely fluent in addition and subtraction math facts. What parents say about our awesome apps: *** 5 stars! My son tried other apps, but after…