- AMI approved
- Unequalled beauty
- Precise control of error
- Exact isolation of one quality
- Perfect interrelations
Subtraction Strip Board
Article number: 0092A0
Description
Using the Subtraction Strip Board, the child practices the equations of the subtraction tables 1–18. Natural wooden strips corresponding in length to the squares 1–18 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 hardwood boxes.
Specifications
Brand | Nienhuis Montessori |
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Minimum age | 3 years, 5 years |
Certification | AMI approved |