Fastest mental arithmetic – Flash Anzan™
Who
Hyuga Kinekawa
What
1.66 second(s)
Where
Japan (Kyoto)
When

The fastest mental arithmetic – Flash Anzan™ is 1.66 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 Sakyo, Kyoto, Japan, on 8 August 2018.

Hyuga Kinekawa won the competition and shortened the previous record of 1.68 seconds by 0.02 second.