This educational app allows children to learn, practice, and master academic concepts within the Common Core State Standards category of Number and Operations in Base Ten. The app addresses kindergarten through second grade Number and Operations in Base Ten Common Core Standards. Each level provides manipulatives or a whiteboard to aid students towards mastery of each targeted standard. The standards targeted in this app are K.NBT.1, 1.NBT.2, 1.NBT.3, 1.NBT.4, 2.NBT.1, 2.NBT.4, 2.NBT.5, 2.NBT.6 and 2.NBT.7