Linking spread sheet in excel

I would like to link worksheets together. I have created a summary for one year of sales and expenses and would like to create a 12 month cash flow spread sheet.

When I change an entry all other entries would recalculate automatically.

Try using this on your summary sheet

=+JAN_2013!K82+FEB_2013!K82 ............. enter each tab name in the formula. I think it should work.