Cafetalk Online Lesson - Abacus from abacus online Watch Video
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Description: Welcome to Cafetalk (cafetalk.com)nTake private online lessons using Skype - any time, any where.n+ + + + + + + +nAbacus lesson!!nhttps://cafetalk.com/lessons/detail/?id=52129&lang=ennLet's calculate things rapidly in your head! The abacus method of mental calculation is effective in the development of the right brain!!nHello everyone!nAre you interested in learning about how to use an abacus? Or, are you not exactly sure what an abacus is?nThe Japanese abacus is a rectangular wooden instrum
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