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16-year-old Xu Yan used only TWO seconds to memorize 15 five-digit numbers and calculate their sum. 【Best of CCTV】selects and collects the most popular videos of all CCTV channels. 【Best of CCTV】Full Ep in HD: https://goo.gl/G4gt6a 【Subscribe to CCTV English YouTube Channel】: http://goo.gl/CpzC0H ■□ More CCTV Shows in HD ■□ Chinese Arts and Crafts: https://goo.gl/Mc3VoM Tibet Short Documentaries；https://goo.gl/V2LYmn My Life My China: https://goo.gl/iHoHk7 Meet the Diplomats: https://goo.gl/JpbwuZ Looking China: https://goo.gl/Cc8EHw The Forbidden City 100: https://goo.gl/5KNwQz Spectrum Asia：https://goo.gl/Cmh6dA Closer to China with R.L Kuhn: https://goo.gl/vJUl3S Travelogue: https://goo.gl/WqoDcw My China: : https://goo.gl/5YrQe2 Crossover: https://goo.gl/R1I0Td Dialogue：https://goo.gl/FUYheE The Heat: https://goo.gl/ApY141 Full Frame: https://goo.gl/9KNIzU CCTV News by CCTV America: https://goo.gl/OdSvau The Great Challenge: https://goo.gl/sKqqoT 【Subscribe to CCTV English YouTube Channel】: http://goo.gl/CpzC0H ■□ Follow and Like us on ■□ Facebook: https://www.facebook.com/cctvcom Twitter: https://twitter.com/CCTV Instagram: http://instagram.com/cctv ■□Subscribe to more official Youtube channels■□ CCTV Gala: http://goo.gl/A9V00o CCTV 4: http://goo.gl/HcZaeZ CCTV: https://goo.gl/gYT8W8 iPanda: http://goo.gl/jHLOia
Chinese teen demonstrates fastest mental calculation