20 Arithmetic bead string
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count forwards and backwards from 1 to 20 grasp quantities at a glance decompose quantities (7 decomposed into e.g. 5 and 2) count in steps...
Arithmetic String (approx. 150 cm) with 100 balls in a step of 10 on a tearproof, stretchable string. The balls are made of RE-Plastic (Ø 1cm). When pulling the string, the slight ball lock lifted and all beads slide back together again.
RE-Plastic is 100% post-consumer recycled plastic which is 100% recyclable again.
Packed in polybag.
item packaging:
weight: 0.044kg
dimensions: 15 x 10 x 1cm
count forwards and backwards from 1 to 20 grasp quantities at a glance decompose quantities (7 decomposed into e.g. 5 and 2) count in steps...
count forwards and backwards from 1 to 20 grasp quantities at a glance decompose quantities (7 decomposed into e.g. 5 and 2) count in steps...
Counting forward and backward from 1 to 100 Addition - adding with and without passing tens multiplication - multiply division - dividing -...
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