Numerical problems connecting several cells

Users questions: Requirements: a few cells in the left lateral link up the number, if a cell is empty is zero. Found with the formula cell if the connection is empty does not appear after "0" value. At this point, you ask to modify the formula to make it display the correct value. Thank you.
Experts answer:E2 the following formula: = IF (AND (A2 = "", B2 = "", C2 =""),"",( IF (A2 = "", 0, A2) & IF (B2 = "", 0, B2) & IF (C2 = "", 0, C2))) E2 the following formula: = IF (A2 = "", 0, A2) & IF (B2 = " ,0,B2)&IF(C2= ,0,C2))
  • This information provided by the users.Thanks!