KoAbacus

KoAbacus

Mental Arithmetic
Paquet:
aboard.and.koabacus
Téléchargements:
50K
Taille:
1.3 MB
Nécessite android:
2.3 ou version ultérieure
Mise à jour:
7 févr. 2019
233
Dernière version:
1.0
Âge:
Tout le monde
Gratuit Télécharger

KoAbacus 1. 0. 46 - Korean Abacus & Mental Arithmetic. The abacus is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere. Button function. 6, 5, 4, 3, 2, 1: - positional number.

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