Tabla de Suma

Small Foot Slide Rule Educate Made of FSC 100%-Certified Wood for Practising Addition Formulas 12415 Calculation board additionAddition up to 20. This colorful kid-friendly calculator allows you to learn by playing during the addition exercise - and it looks really beautiful! Made of 100% FSC® certified wood the addition board and calculator cubes are particularly robust and durable. Practical: for each cube there is a calculation exercise with the corresponding solution on the back. Children can therefore control their calculation results themselves.