Where is the SP 2010 out of the box workflow status value stored?

I created an out of the box Approval - SharePoint 2010 workflow (TEST1) on a custom list. When I created this out of the box workflow, I specified a name for the task (TEST1 Tasks) and history (TEST1 History) list. 

The workflow is creating tasks, sending emails, and the task emails lead me to a screen where I can approve or reject the requests.

However, TEST1 - the list that contains the items created - doesn't have a status column.  The TEST1 Tasks has a status column. But I would prefer the people working with the workflow just look at TEST1 and not the Tasks or History lists.

What is the preferred way to create one of these list workflows so that the admins only have to look at the specific tasks that have been submitted and they can see which have been approved or not?

Thank you