Rapid addition and subtraction of maximum single-digit numbers by a child

The record for performing rapid addition and subtraction of the maximum number of single-digit numbers was set by Tejal Tushar Tomke (born on October 3, 2012) of Parbhani, Maharashtra. She rapidly added and subtracted 100 single-digit numbers (displayed on a computer screen) in 37 seconds and provided a single correct answer of 28, using the Abacus technique (under the guidance of Dilip Uratwad, Director, Smart Abacus Parbhani), at the age of 12 years, 9 months and 12 days, as confirmed on July 15, 2025.