Maximum advanced-level arithmetic sums of eight-digit numbers solved by a child

The record for solving the maximum number of advanced-level arithmetic sums of eight-digit numbers was set by Abyank Kannaa M. V. (born on September 10, 2018) of Salem, Tamil Nadu. He solved 40 advanced-level arithmetic sums of eight-digit numbers, consisting of 10 sums each of multiplication, subtraction, addition and division, on a tablet, in 1 hour, 7 minutes and 36 seconds, using a stylus pen, at the age of 7 years, 11 months and 16 days, as confirmed on August 26, 2026.