Rapid addition of maximum single-digit numbers by a child

The record for performing rapid addition of the maximum number of single-digit numbers was set by Josheen Kaur Bhatia (born on October 15, 2014) of Gurugram, Haryana. She performed rapid addition of 1000 single-digit numbers flashing on the screen with a speed of 0.5 seconds in 8 minutes and 27 seconds, at the age of 11 years, 5 months and 9 days, as confirmed on March 24, 2026.