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1-20 Number Line

This uses the same principle as the 1-10 number line, the represented beads are organised in alternating groups of five white, five red. This is an excellent model for the representational stage of the field of 20. It can be used alongside the red and white double side counters to exemplify the quanity of 20 partitioned in 5s.

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Availability: In stock

£0.50

1-20 Number Line