Math Gears Subtraction

Details
• A pocket-sized interactive book with a gadget-like look and feel to help teach subtraction facts
• Turn the wheel to show a math problem, solve it, then lift the flap to check the answer
• Includes fun facts about numbers and math
• A sturdy, interactive teaching tool
• Makes a great gift for 4- to 7-year-olds, for hands-on, screen-free play