Round decimals the same way you round non-decimal numbers. Check the number in the place value one below the one you are rounding to. If it is greater than or equal to 5, round up. If it is less than 5, round down. Then, only write the numbers until you reach the place you are rounding to. Ex. Round 8.715 to the nearest whole number. Since 7 is greater than 5, round up. 8.715 rounds to 9. Ex. Round 63.271 to the nearest hundredth. Since 1 is less than 5, round down. 63.271 rounds to 63.27.