In 2007 pennsylvania had approximately 121,580 miles of public roads what is 121580 rounded to the nearest thousand

The thousands digit is 1   and the hundreds is 5 so we increase the thousands digit by 1

-   122,000

The ten thousandths column is where the 2 is so if your rounding, go to the column before the 2 because your answer will be 120,000 or 130,000 etc if the one thousandth spot is 1, 2, 3, or 4, you keep it at 120,000 but if it’s  5, 6,7,8,9 your answer is 130,000 so in this case it’s a 1 so your answer is 120,000.

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation: