🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$21.99
WISSNER active learning Jumbo Arithemtic String, 20 RE-Wood balls red/white — image 1
Science KitsWissner✓ In stock

WISSNER active learning Jumbo Arithemtic String, 20 RE-Wood balls red/white

$21.99
Worldwide shipping
Fast tracked delivery
30-day returns
Hassle-free returns
Secure checkout
Safe & protected
Great service
Thousands of happy customers
About this item
  • Demonstration calculation chain 20er number space: 20 red / white balls (diameter 25 mm) from RE-Wood , in the 5 er step on a 100 cm long cord.
  • playfully promote numerical comprehension and facilitate access to the numerical range up to 20 and to abstract mental arithmetic
  • packed in polybag
  • made of RE-Wood : 100% recyclable, certified with the PEFC seal and free of harmful substances; complies with toy standard DIN EN71-3
  • Made in Germany
Product description

Product Description . Demonstration calculation chain 20er number space: 20 red / white balls (diameter 25 mm) from RE-Wood®, in the 5th step on a 100 cm long string. >fö rder the understanding of numbers in a playful way and facilitate access to the number space up to 20 as well as to abstract arithmetic in the head. p acked in polybag; compliant with toy standard DIN EN71-3. from RE-Wood® (100% recyclable, certified with the PEFC seal and free of harmful substances). Made in Germany. ;. . Product description. ;. With the help of this arithmetic chain children solve arithmetic operations in the number range up to 20 and learn to recognize and divide quantities. The chain illustrates the first addition and/or subtraction tasks very well and especially helps school beginners. The calculation chain is also extremely light, quickly plugged into the satchel and can therefore also be used perfectly at home as a calculation aid for homework. By shifting the balls, the children have more fun with arithmetic and, incidentally, with their fine motor skills. Due to the materials used and the workmanship, our rake chains are äextremely durable. Support your child with this calculation chain during the difficult transition from the finger to the abstract arithmetic in the head. ;. RE-Wood®. ;. "Our sustainable and öecological RE-Wood>. r eg; material is produced from shredded wood residues of German production and a binding agent in a ratio of 80 to 20 in a resource-conserving manner. RE-Wood® is 100% recyclable, certified with the PEFC seal and free of harmful substances. Articles made of RE-Wood® are stable, lightweight and highly safe to use. Please visit for more information about RE-Wood®. “. . . As a family-owned company Wissner, we have been committed to a conscious sustainable choice of materials for over 40 years and produce exclusively in Germany. ;. We develop innovative and resource-saving production technologies. We are particularly proud of this. Our didactically useful learning and teaching aids and games are not only suitable for kindergartens and schools, but also for use at home. ;. The guiding principle of our products is: . active learning. – seeing, speaking, acting. Directions Move the beads to solve arithmetic problems up to 20. Box Contains 1 x Jumbo Arithmetic String

Product details
Brand
Wissner
Manufacturer
WISSNER® active learning
Colour
Multi-color
Size
Small

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
See all reviews →
S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

You might also like

Similar items

View all →