<Li> Round half up (also known as "5 / 4") rounds up to 1.3 . This is the default rounding method implied in many disciplines if not specified . </Li> <Li> Round half to even, which rounds to the nearest even number, rounds down to 1.2 in this case . The same strategy applied to 1.35 would instead round up to 1.4 . </Li> <Li> Replace non-significant figures in front of the decimal point by zeros . </Li> <Li> Drop all the digits after the decimal point to the right of the significant figures (do not replace them with zeros). </Li>

Which digit is the least significant digit of a number