Passing VARCHAR2 values to a Procedure

I have two procedures in Procedure A gathers data from a .CSV file and passes the values as VARCHAR2 values to Procedure B which begins calculation and insertion into a base table. The following code should help shed some light on my objectives:

The Code below is the shortened and to the point portion. It is also understood that values that are pulled from Table A are all VARCHAR2 datatypes and all values in Table B are also all VARCHAR2 datatypes.

Procedure P_Procedure_A()
 V_SS_ID VARCHAR2(20);
  V_TERM VARCHAR2(10);
  V_TEAS  VARCHAR2(10)

CURSOR  c_newstudents IS
SELECT SSID, TERM_CODE, TEAS
FROM APP_NURSING.T_TABLE_A;

BEGIN

OPEN c_newstudents;
LOOP
FETCH c_newstudents INTO
 V_SS_ID,
V_TERM,
V_TEAS;


P_PROCEDURE_B(V_SS_ID),V_TERM,V_TEAS);
EXIT WHEN c_newstudents%NOTFOUND;

  END LOOP;

  CLOSE c_newstudents;
-------
PROCEDURE B
-------
PROCEDURE P_PROCEDURE_B(IN_SSID IN VARCHAR2, IN_TERM IN VARCHAR2, IN_TEAS IN VARCHAR2) IS

------

I receive the following error message when trying to run the procedures:
ORA-06502: PL/SQL: numeric or value error: character to number conversion error


Nothing is being converted and I do see my data values. Now when I take the values and run the Proecedure_B Independently, the calculations are performed accurately and are inserted into my base Table B.

This is all running on Oracle 11g.

Thank You,