Hi there,
Try this in F3: =MROUND(SUM(B3+D3+E3),0.05)
Just be warned that if you try and send this to a user running Excel 2003, they'll see a #NAME? error if they haven't activated the Analysis Toolpack. (Easy to fix though, just get them to go to Tools-->Addins and check "Analysis Toolpack")
Hope it helps,
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