Maximum addition and subtraction sums of 5 digit numbers solved in 15 minutes
The record for solving the maximum number of addition and subtraction sums of 5 digit numbers in 15 minutes was set by Paarth Raj Kapoor (born on September 8, 2013) of Pitampura, New Delhi. He correctly added and subtracted 13 sums in 15 minutes (each sum comprising 5 digits and 10 rows) at the age of 8 years, 7 months and 1 day, as confirmed on April 9, 2022.