Kindermatic Montessori Subtraction Working Charts 蒙特梭利 減法組

Kindermatic Montessori Subtraction Working Charts 蒙特梭利 減法組

教具構成：減法練習表1,2和空白表共3塊；帶有一個木制盒子，裡面有所有基本減法得數；

材質：櫸木。包裝尺寸：62*30*6cm

The Subtraction Working Charts aid the child in practice and memorization of the subtraction combinations. Includes a control chart, two working charts and a box of wooden answer chips.

• Dimensions:
     - Control Chart: 23 x 7.5 inches
     - Each Working Chart: 9.25 x 6.5 inches

• Recommended Ages: 5.5 years and up