皇冠体育app

   

CHINA / Center

Psychological calculation contest
(Xinhua)
Updated: 2006-05-27 16:30

              

More than 400 young children compete in a psychological calculation contest in Liu Zhou of South 皇冠体育app's Guang Xi Province May 27, 2006. Developed from the traditional means of calculation with abacus, psychological calculation is to use an abacus mentally and taught to develop children's intelligence. [Xinhua]


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