I need to determine the value of eah underlined digit and its place value.

42,107,000

472,336

It should be the 2 in 42,107,000

4 in 472,336

Please tell us what you think those place values are.

http://csd.k12.nh.us/~mdeno/images/pvchart.gif

Here's a place value chart that should help.

=)