How do I round off? 12.456 + 15 + 23.45

1 Answer
May 7, 2017

Answer:

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

Explanation:

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

#12.456+15+23.45=50.906#

#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.