Japan: soroban and Flash anzan
6 videos • 2,758 views • by Alex Bellos
1
Flash Anzan at the All-Japan National Soroban Championship 2012
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2
Amazing abacus addition by Japanese girl, age 7
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3
Alex Bellos: Flash Anzan Shiritori
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4
Alex Bellos: Flash Anzan
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5
Ayumu holding task 5
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6
Ayumu 10secs
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