Description: It can help students understand the calculation method of addition, and can also teach them inverse operations, number equality and exchange. Children try to write how many answers can be written in 3 minutes, and see who is the arithmetic winner. suitable for classroom or party favors. Include a hanging pocket, 48 double-sided cards, 2 blank cards. hanging pocket size: 12.75x35in (32.5x89cm), card size: 11x2in (28x5cm). The addition pocket made of polyester, easy to flatten out, lightweight, water resistance and easy to clean. Perfect for basic math addition and subtraction education at home or school. Specification: Material: Polyester+Paper Package Includes: 1 Set Addition And Pocket Chart. Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.