Substraction Box

Tax excluded

Subtraction box with Montessori self-control, 90 minus tasks also with decimal transition

Made of wood, approx. 26.5 x 16 x 5.5 cm with control card and storage

Children learn about subtraction problems in a particularly easy way. Two numbers are subtracted from the number range 1 - 18. The control panel enables easy self-control.

Application example: The child takes a task tile, for example, 9 - 5, and looks for the corresponding result on the solution tile.

Application, advantages, areas of application for this Montessori material:

    • contains all negative questions with single-digit results

    • Including a practical control panel for easy Montessori self-control

    • Ideal addition to the Montessori strip board for subtraction

    • Learning and practicing subtraction problems

    • Independent solving of negative tasks

    • Develop an understanding of negative arithmetic

    • Montessori material from 6 years of age

Scope of the mathematical Montessori material:
1 storage box with lid, wood, approx. 26.5 x 16 x 5.5 cm
1 control board, wood, approx. 40 x 16 cm
90 task tiles, wood, approx. 6 x 2 cm
90 solution tiles , Wood, approx. 2 x 2 cm

Instructions for the Montessori sound boxes

An adult puts the box with the task and solution tiles in front of him. He takes out the task cards and sorts them into stacks according to the first number (1 - x; 2 - x; 3 - x ..... 18 - 9).

Then the number plates are pre-sorted according to the value. This makes orientation easier for the child later.

The solution card is first placed face down on the table.

Now the task cards are processed one after the other. If the child is working with the material for the first time, it may be useful to work through the tasks in order and to build the above-mentioned stacks. The adult does the same during the introduction of the material.  After he has assigned the solution tiles to the tasks, he takes the solution board and checks by reading whether he has solved the tasks correctly.

Then the next batch is processed.

Later, the tasks can be solved in a mess.


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