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they no longer need to keep the steps in their short-term memory
and easy to handle
Why Choose This Soroban
il connaîtra la manière de solutionner n’importe quel énoncé mathématique
You can use it to practice mental arithmetic or as a reference tool
Petit boulier en bois - design scandinave - rose Russe they no longer need toCaractristiques Taille: 20 x 15 x 3 cm Fabrication en bois massif
US$ 139.90
US$ 69.90
US$ 59.90
