Fastest to solve two- and three-digit addition sums by a child
The record for being the fastest to solve the maximum number of two and three-digit addition sums was set by Chinmay Mahesh Prabhu (born on December 6, 2011) of Titwala, Maharashtra. He mentally added 24 two and three-digit addition (2, 3 and 4 rows) sums non-stop without using a calculator in 2 minutes, 14 seconds and 69 milliseconds at the age of 10 years, 8 months and 16 days, as confirmed on August 22, 2022.