That may be because the value is identified as text. Try without the quotes:
IF(B4="FP",10,"")

"Larry" wrote:

When I use an if statement, I can get the answer I want but I can't add it to
another if statement. Example: IF(B4="FP","10"," ") 10 shows up where it is
supposed to in M4. But if I try to sum this total to another SUM(M4+M5) it
get a #VALUE!