find the hundredths place, if the number to the right is higher than or equal to 5 increase the number in the hundredth place by 1, if not keep the number the same (so 6 will turn into 7) and make the numbers after that 0s. Copy down the numbers exactly like they are but with the rounded hundredth place.
You round the second 6 in the number 665 and since the number is 5 or greater than 5 , you add +1 to the 6 and get 7. Which makes it into “675” or u can change the 5 into a 0.
