How do you round numbers to the nearest thousandth?

Answer 1

The thousandths place digit is the third digit to the right of the decimal point.

• Look at the digit to the right of that one (the ten thousandths place).
• If that digit is 0-4, then the thousandths digit doesn't change.
• If that digit is 5-9, then add 1 to the thousandths place digit and carry over the rest of the addition if the thousandths digit is a 9.
• Truncate at the thousandths place (discard all digits to the right of it)