Place values indicate the position of a digit in a number. To the left of the decimal point, the first few place values are ones, tens, hundreds and thousands. Wolfram|Alpha can compute place values for both integers and decimals and can round numbers to any place value.
Compute place value charts or find the place value for just one digit.
Show place values for a number:
Find the value of a particular digit of a number:
Apply rules for rounding numbers, including the special cases for rounding a half.