Math Fun Library 


Question : 
What is 'Rounding Off' in arithmetic ? 
Answer : 
To Round off a decimal number means to correct it to a specified
number off significant digits. The following rule is followed
: 
i) The number of nonzero digits are retained and the rest on
the right
of this are discarded. 
ii) If the digit to the immediate right of the last digit retained is grater than 5, the last digit retained is
increased by 1.

iii) If the digit to the immediate right of the last digit retained is less than five, the last digit is left unchanged.
