Visual Basic - for..next and formulas

I need to make Excel VBA script which inserts formula depending on cells values. My current version returns only FALSE value

For i = 1 To 10 Step 1
If Cells(i, 2).Value > Cells(i, 1).Value Then Cells(i, 3).Value = Cells(i, 3).Formula = "=cells(i,1).value+cells(i,2).value"
If Cells(i, 2).Value < Cells(i, 1).Value Then Cells(i, 3).Value = Cells(i, 3).Formula = "=cells(i,2).value-cells(i,1).value"
Next i