Rapid addition of maximum two-digit numbers in 30 seconds
The record for performing rapid addition of the maximum number of two-digit numbers in 30 seconds was set by Mitansh Taneja (born on May 11, 2011) of Surat, Gujarat. He added 60 numbers flashing on the screen at a fast speed (time gap of 0.5 seconds) in 30 seconds and answered correctly at the age of 10 years, 2 months and 3 days, as confirmed on July 14, 2021.