What is the round of 8.6 to the nearest whole number?

0-4 = round down

5-9 = round up

6 = round up

8 + 1 = 9

8.6 rounded to the nearest whole number is 9.

since the 6 is greater than 5, 8.6 rounds to 9

if the number AFTER the one you are rounding to is 5 or greater round up, if it's less than 5 round down