Sum multiple columns when column has NULL value in SQL Server

Hi!

How I can get sum two columns from table when it is null.

declare @Result table (id int, smoney float, fmoney float)
insert into @Result(id, smoney, fmoney)values(1, 3500, null) 
insert into @Result(id, smoney, fmoney)values(2, 3000, null)
insert into @Result(id, smoney, fmoney)values(3, 2500, null)

select sum(sum(smoney)+sum(fmoney))summa from @Result
select * from @Result