Round off the following number to two significant figures: 652,387

When rounding off 652,387 to two significant figures, we look at the first two digits: 6 and 5. The next digit is 2, which tells us to keep the 5 as is. Therefore, rounded to two significant figures, the number becomes 6,500.

For a fun fact, did you know that significant figures are used not just in rounding but also to express the precision of a measurement? For example, in scientific studies, the number of significant figures indicates how reliable, accurate, or precise the measurement is!