THE WORLD RECORD OF FASTEST TO MENTALLY SOLVE MOST ADDITIONS & SUBTRACTIONS (3 rows of 2 digits) IS ACHIEVED BY PULUPU KARTHIKEYA ON 27 JULY 2022 IN RELANGI , ANDHRA PRADESH, INDIA. HE (26 November 2014) SOLVED MENTALLY 12 ADDITIONS AND SUBTRACTIONS OF 3 ROWS WITH 2 DIGITS IN 2 MINUTES 7 SECONDS AND HAS SET A RECORD FOR THE WORLDWIDE BOOK OF RECORDS.
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