How do I round off? 12.456 + 15 + 23.45

1 Answer
May 7, 2017


If you mean how to round using significant figures, you would round to the nearest whole number.


When adding or subtracting using significant figures, the result is rounded to the number in the problem with the least number of decimal places.


#50.906# is rounded to #51# because the number #15# has no decimal places, it is a whole number, so the answer must be a whole number.