Our complete Ocean Addition and Subtraction Complete Kit includes our Math Pack and Ocean Box to make sure your child enjoys learning the concepts of addition and subtraction while using hands-on tools that will not only make learning fun, but will also help with understanding and fine motor development. Included in this complete kit is our Ocean Addition and Subtraction Math Pack, whiteboard marker, and our Ocean Addition and Subtraction Box (box, 2 dice, ocean counters, and sensory salt).