Gyaltsan (center) teaches students how to use his multiplication chart at a primary school in Lhasa, Tibet autonomous region. [Photo by PALDEN NYIMA/CHINA DAILY] Gyaltsan, a Tibetan man from Nyingchi ...

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Gyaltsan, a Tibetan man from Nyingchi city in the Tibet autonomous region, has created a new type of multiplication chart that helps primary school students calculate faster. As opposed to the small ...