To round a decimal, identify the place value you want to round, which is referred to as the rounding digit. Identify the number immediately to the right of the rounding digit. If the number immediately to the right of the rounding digit is less than five, don't change the rounding digit, and drop all digits to the right. If the number to the right of the rounding digit is greater than five, add one to the rounding digit, and remove all digits to the right.
Continue ReadingIf you are rounding to the nearest tenth, the rounding digit is the first number to the right of the decimal point. When rounding to the nearest hundredth, the rounding digit is two digits to the right of the decimal point. When rounding to the nearest thousandth, the rounding digit is three digits to the right of the decimal point.
Locate the digit to the right of the rounding digit. If you are rounding to the nearest tenth, the digit to the right is in the thousandth place. Round up by adding one to the rounding digit if the digit to the right is greater than five. Round down if the digit is less than five.
Drop all values to the right of the rounding digit. This should be done whether the number to the right of the rounding digit is less than or greater than five.