The record for performing rapid addition & subtraction of 200 numbers was set by Rishi Pandey (born on May 24, 2013) of Delhi. He performed quick addition and subtraction of 200 two-digit numbers flashing on the screen with a speed of 0.3 seconds, at the young age of 7 years, 5 months and 3 days, as confirmed on October 27, 2020.