- This article is made to order, delivery time approx. 4 - 5 months
Subtraction Working Charts
Please note:
Montessori materials are NOT toys, but educational materials. Proper use requires appropriate training.
Montessori materials may contain small, rough, sharp, or other elements that could cause injury or damage if used improperly.
It may therefore only be used by children under the supervision of appropriately trained persons and in an appropriate environment.
The Subtraction Working Charts aid the child in practice and memorization of the subtraction combinations. Includes a control chart, 2 working charts and a box of wooden answer chips.