Fastest mental arithmetic (30 sets of three-digit numbers) – Flash Anzan™
- Who
- Takuya Yatani
- What
- 3.30 second(s)
- Where
- Japan (Shibuya)
- When
- 01 June 2025
The fastest mental arithmetic (30 sets of three-digit numbers) – Flash Anzan™ is 3.30 seconds and was achieved by Takuya Yatani (Japan) by correctly adding 30 sets of three-digit numbers flashed on the screen at All Japan FaST-Flashanzan association Speed Test Championships, in Shibuya, Tokyo, Japan, on 1 June 2025.
Takuya broke the previous record by 0.01 seconds.