Master addition and subtraction with math whizzes Robin and Dob.
• Developed by a Math Ph.D student for his own kids.
• Designed to provide kids the foundation they need for more advanced math.
• Guaranteed to be fun and effective.
• Includes a cool diploma to share with family and friends!
Special features:
• 10 levels for addition & bonus challenges.
• 10 levels for subtraction & bonus challenges.
• Unique, interactive tools.
• Automatic progress tracking for up to 4 customizable profiles.
"My daughter always thought math was boring until we came across Robin and Dob. Now she smiles while shes practicing her addition and subtraction." -- Marlis Zimmerman, Appracadabra