When rounding 8.7 to one decimal place, you look at the first digit after the decimal point, which is 7. Since 7 is equal to or greater than 5, you round up the preceding digit, which in this case is 8. Therefore, 8.7 rounded to one decimal place is 8.8.
Chat with our AI personalities
8.7 is already a number with exactly one decimal place. We don't know whether
or not it's correct until we know where it came from and what it represents.