Maximum Number of Mental Arithmetic (Addition) Problems Solved by a Minor (Male) in 5 Hours
The Maximum Number of Mental Arithmetic (Addition) Problems Solved by a Minor (Male) in 5 Hours counted to 9,219 perfect answers out of 10228 arithmetic sums. It was accomplished by S.T.Sailes, ARJWIN Abacus, Tiruppur District, Tamil Nadu, India on October 3, 2015.
