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How do I get the sum?

I don´t know where I should put some () to get the sum. Or canI do it it in some better way? :)

SELECT COUNT (CAST(Value as int)) FROM [tblExtraFieldData],[tblTask]
WHERE [tblExtraFieldData].[FieldId] = '10010' 
AND [tblExtraFieldData].[OwnerId]=[tblTask].[Id] 
AND [tblTask].[Status]=0
AND [tblExtraFieldData].[Value]>'1'
AND [tblTask].[ProjectNr]= 'Offert - Bygg'

-

SELECT COUNT (CAST(Value as int)) FROM [tblExtraFieldData],[tblTask]
WHERE [tblExtraFieldData].[FieldId] = '10010' 
AND [tblExtraFieldData].[OwnerId]=[tblTask].[Id] 
AND [tblTask].[Status]=0
AND [tblTask].[ProjectNr]= 'Offert - Bygg'

Try this way

select sum(b.a) from(
SELECT COUNT (CAST(Value as int)) as a FROM [tblExtraFieldData],[tblTask]
WHERE [tblExtraFieldData].[FieldId] = '10010' 
AND [tblExtraFieldData].[OwnerId]=[tblTask].[Id] 
AND [tblTask].[Status]=0
AND [tblExtraFieldData].[Value]>'1'
AND [tblTask].[ProjectNr]= 'Offert - Bygg'

union all

SELECT COUNT (CAST(Value as int)) as a FROM [tblExtraFieldData],[tblTask]
WHERE [tblExtraFieldData].[FieldId] = '10010' 
AND [tblExtraFieldData].[OwnerId]=[tblTask].[Id] 
AND [tblTask].[Status]=0
AND [tblTask].[ProjectNr]= 'Offert - Bygg') b

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