You can do this without changing your data, using field coding:
{=INT({MERGEFIELD termint}/100) \# 0000}
or:
{=INT(«termint»/100) \# 0000}
Note: The field brace pairs (ie '{ }') for the above example are created via Ctrl-F9 - you can't simply type them or copy & paste them from this message. Likewise, you can't type or copy & paste the chevrons (ie '« »') - they're part of the actual mergefields, which you can insert from the mailmerge toolbar.
Cheers
Paul Edstein
[MS MVP - Word]