I'm getting the word Error on my report.There is one problem with this
expression where you say enter your table name. I'm not for sure on what to
put there since I am using multiple tables and expressions.
The expr4 and Expr1 come from multiple expressions for example:

Expr1: DateDiff("d",[JobStartDate],[JobEnddate])+1  --This gives me the
number of days absence

Expr2: DateDiff("h",[JobStarttime],[JobEndtime]) --This gives me the number
of hours worked, but just for that job, it doesn't know that there could be
mulitple days.
Expr4: IIf([Expr2]<=4,".5","1")--This is defining my Whole days and Half days

Ok, I will try to do a little bit more detail. I tried the below expression
and got Type mismatch.  Here is how my report should look:
                                                            Results        
         Should Be This
School                                                   Adams Middle
Employee Position                                   Computer Education
How Many Half Days Absence                      0                            
       0
How Many Whole Days Absence                 13                              
  18
Total Absence                                          18                    
             18

Alot of my calculations have been done in query, which is where my Expr1 and
Expr4 come from.
The total absence Count is correct.  The formula used for that is:
=Sum([Expr1]*[expr4])

Half day count is correct, Formula is:
=Sum(IIf([expr4]=".5",1,0))

Whole Day is wrong and orginial formula that I was using was:

=Sum(IIf([expr4]="1",1,0))

I'm still very new to this, and I am catching on, but any more suggestions
would be greatly appreciated.

The total