Fastest Time to Solve 100 Single Digit Mental Arithmetic Multiplication Problems (2 Rows) by an Individual (Male)
Most Single Digit Mental Arithmetic Addition and Subtraction Problems (3 Rows) Solved in 3 Minutes by an Individual (Male)
Most Single Digit Mental Arithmetic Addition Problems (4 Rows) Solved in 4 Minutes by an Individual (Male)
Most Single Digit Mental Arithmetic Addition Problems (5 Rows) Solved in 4 Minutes by an Individual (Male)
Most Single Digit Mental Arithmetic Addition Problems (3 Rows) Solved in 3 Minutes by an Individual (Male)
Most Single Digit Mental Arithmetic Addition Problems (4 Rows) Solved in 4 Minutes by an Individual (Female)
Fastest Time to Solve 25 Two Digit Addition and Subtraction Problems (3 Rows) using Abacus while Listening to Songs by an Individual (Female)
Most Single Digit Mental Arithmetic Addition and Subtraction Problems (8 Rows) Solved in 5 Minutes by an Individual (Female)
Most Two Digit Mental Arithmetic Multiplication Problems (2 Rows) Solved in 5 Minutes by an Individual (Female)
Most Three Digit Mental Arithmetic Division Problems (2 Rows) Solved in 5 Minutes by an Individual (Male)
Fastest Time to Repeatedly Subtract a Single Digit Number 100 times from a Larger Number by an Individual (Male)
Most Two Digit Mental Arithmetic Subtraction Problems (2 Rows) Solved in 5 Minutes by an Individual (Female)
