Maximum five digit multiplication sums mentally solved by a child using Abacus technique
The record for mentally solving the maximum number of five digit multiplication sums using Abacus technique was set by Kastur Krishna Sawant (born on September 6, 2013) of Mumbai, Maharashtra. He mentally solved 10 multiplication sums (5 digit number multiplied by one digit) in 58 seconds on his mobile phone, using Abacus technique, at the age of 9 years, 5 months and 8 days, as confirmed on February 14, 2023.