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9 06, 2017

How to make an abacus – Ancient China project

By |2019-01-15T08:54:03-08:00June 9th, 2017|China, Crafts, Science|Comments Off on How to make an abacus – Ancient China project

Chinese abacus project, made by kids at Laurelhurst School, Portland, Oregon Who invented the abacus? People in China started to use an abacus to help them with math problems maybe [...]

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