Montessori Supplies for Modern Classrooms

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