1. Find the number that is in the tenthousands place. For instance, in the number 64,700, the number 6 is in the tenthousands place. 2. Look at the number immediately to the right
http://www.ehow.com/how_5836317_roundnearestten...

The 3 is in the ten thousands place so we look one back to see which way we round, there is a 4 in the thousnads place so we will round down, the answer is 230,000.
http://wiki.answers.com/Q/What_is_234989_rounded_t...

45213021 rounded to the nearest ten thousand would be:
http://www.chacha.com/question/whatis45213021ro...

456134 rounded to the nearest ten thousand is 460,000. The '6' in the thousands column rounds the '5' in the ten thousands column to a '6'
http://answers.yahoo.com/question/index?qid=201206...
