How to add the Total of Columns in SSRS 2008r2

Hi All,

   I have one section is there in Report with in Subsuction 3 sections there as fo rthe below table.Now we want toatl section count in one Expression This is the example:No of Excepitons 0+2+0 =2 .

                             Exceptions

               Compliance      Sponsor    Salmat

                 0                        2           0

Total        0                        2           0

Please help me on this .....