Fastest cumulative addition by a child using abacus

Atharv Agandh Damodare (born on March 24, 2012) of Maharashtra, India, set a record for performing the fastest cumulative addition using abacus. He kept a sheet open in the laptop to view numbers from 1 to 200 and orally performed cumulative addition (from 1 to 200) nonstop (adding 1+2+3…till 200) in 4 minutes and 35 seconds, at the age of 9 years, 1 month and 28 days, as confirmed on June 1, 2021.