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Maximum Single Digit Mental Arithmetic Multiplication Problems (2 Rows) Solved in 3 Minutes by an Individual (Female)

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Fastest Time to Solve 100 Single Digit Mental Arithmetic Multiplication Problems (2 Rows) by an Individual (Male)

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Fastest Time to Solve 75 Two Digit Mental Arithmetic Multiplication Problems (2 Rows) by an Individual (Male)

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Maximum Single Digit Mental Arithmetic Addition and Subtraction Problems (3 Rows) Solved in 3 Minutes by an Individual (Male)

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Maximum Single Digit Mental Arithmetic Addition Problems (4 Rows) Solved in 4 Minutes by an Individual (Male)

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Maximum Single Digit Mental Arithmetic Addition Problems (5 Rows) Solved in 4 Minutes by an Individual (Male)