Fastest Time to Solve 100 Single Digit Addition Problems (4 Rows) using Abacus by an Individual (Male)
Most Two Digit Mental Arithmetic Multiplication Problems (2 Rows) Solved in 5 Minutes by an Individual (Male)
Most Single Digit Mental Arithmetic Addition Problems (5 Rows) Solved in 7 Minutes by an Individual (Female)
Most Single Digit Mental Arithmetic Multiplication Problems (2 Rows) Solved in 10 Minutes by an Individual (Male)
Fastest Time to Solve 50 Two Digit Mental Arithmetic Multiplication Problems (2 Rows) by an Individual (Male)
Most Single Digit Mental Arithmetic Addition and Subtraction Problems (3 Rows) Solved in 6 Minutes by an Individual (Female)
