IBRS20150991
Maximum Number of Mental Arithmetic (Addition) Problems Solved by a Minor (Male) in 5 Hours
Human Feats
S.T.Sailes
10-Mar-2015
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.
IBRS20256385
IBRS20256385.
IBRS20256379
IBRS20256379.
IBRS20256380