Fastest mental arithmetic (15 sets of three-digit numbers) – Flash Anzan™
Who
Hyuga Kinekawa
What
1.64 second(s)
Where
Japan (Sakyo)
When

The fastest mental arithmetic – Flash Anzan™ is 1.64 seconds and was achieved by Hyuga Kinekawa (Japan) by correctly adding 15 sets of three-digit numbers flashed on the screen at All Japan Soroban Championships held at Kyoto International Conference Center, in Sakyō, Kyoto, Japan, on 8 August 2019.


Hyuga Kinekawa won the competition and shortened the previous record of 1.66 seconds by 0.02 second.