Complex sentence: She claimed the title among 37 competitors from 16 countries, after standing first in extracting 6 digit square root upto 8 significant digit, 2nd in addition (10 numbers of 10 digits) and multiplication (2numbers of 8 digits).
Split into simpler sentences: She claimed the title among 37 competitors from 16 countries. She stood first in extracting 6 digit square root upto 8 significant digit, 2nd in addition (10 numbers of 10 digits) and multiplication (2numbers of 8 digits).