Maximum single-digit addition and subtraction sums with multiple terms solved orally by a child
The record for orally solving the maximum number of single-digit addition and subtraction sums with multiple terms was set by Aarvi Ajay (born on November 18, 2016) of Mumbai Suburban, Maharashtra. She orally answered 14 single- digit addition and subtraction sums, each consisting of 20 multiple terms, in 7 minutes and 53 seconds, using the Abacus speed calculation technique, at the age of 9 years, 3 months and 13 days, as confirmed on March 3, 2026.
