GOKI - Marble Calculator
Add and subtract with numbers up to 20. The Goki Marble Calculator improves children's understanding of numbers and quantities and simple maths equations. Once they have learnt the basics and are able to count the marbles without help, remove the number board and let them do the sums on their own. A perfect start to fundamental maths skills!
Size: 34 x 4.8 x 3cm
Ages: 5+
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