Subtraction Strip Board
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.
Using the Subtraction Strip Board, the child practices the equations of the subtraction tables 1 to 18. Natural wooden strips corresponding in length to the squares 1 to 18 are used to indicate the number to subtract from minuend and 1 set of blue strips used to subtract with subtrahend. A set of red strips is included for further explorations. The 2 sets of strips are stored in wooden boxes with lid.