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A colourful calculator for learning mathematics 81 number cubes with all arithmetic tasks of the 1x1 With color subdivision for easier learning of individual number series Made of robust wood Measurements: 17 x 17 x 2 cm
A colourful calculator for learning mathematics 81 number cubes with all arithmetic tasks of the 1x1 With color subdivision for easier learning of individual number series Made of robust wood Measurements: 17 x 17 x 2 cm