Hide zeros in a form using LiveCycle Designer ES 8.2

How do i hide the zeros in calculated fields?

Some of my fields show the zeros and others do not and i can not figure out why or what the difference is between the fields. They seem to look the same.

I've found a post where it suggests using the validation tab for the field and add certain code but my validation tab is grayed out. Although, that suggestion may have been for the Acrobat product not LiveCycle Designer ES 8.2.

Here is a link to the example.pdf of some fields showing zeros and other fields not showing zeros. I don't want any zeros showing incase someone wants to printout the form and fill it in by hand.

http://www.appleriverstatebank.com/erexample.pdf

Thanks!