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This 2-compartment box with lid contains plastic chips,1 set with equations printed on them and 1 set with the answers to be used with the Subtraction Working Charts. All the equations and differences for the subtraction combinations 1–18 are included.
| Brand | Kinderhuis Montessori |
|---|---|
| Minimum age | 6 years |
| Certification | Montessori approved |
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
US$40
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US$ 11396.00
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