Fastest Time To Calculate 10 Math Problems Involving Four-Digit Addition And Subtraction

United States Samarth Bhagyesh Patel

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Gandhinagar, Gujarat, India / May 6, 2013

Samarth Bhagyesh Patel mentally solved 10 random math problems correctly involving four-digit addition and subtraction in one minute, 41.20 seconds. He is seven years old and a champion at an international math competition held in Australia.

- problem must include ten four-digit equations involving addition and subtraction
- must be correctly solved
- must be solved mentally; may not use calculator or other device
- no assistance permitted during the attempt

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Tags: wildcardfastestnumbermathdigitssubtractionaddition

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