There seems to be a bit of confusion around the double science grading. You just get a grade for all the 6 papers of 2 numbers. It’s worth 2 GCSEs. It’s not ‘one grade is paper 1, the other paper 2.’
Because it’s worth 2 GCSEs the grading is given as 2 numbers which are graded more finely than the other GCSEs. Top grade is 9-9, next 9-8, then 8-8, 8-7, 7-7, 7-6, 6-6, 6-5, 5-5, 5-4, 4-4, 4-3, 3-3, 3-2, 2-2, 2-1, 1-1, U. The higher number is always first, you can’t get 6-7, it would be 7-6. You can’t get 6-4 or 9-7, the numbers are always the same or consecutive. Some print outs may have 66 instead of 6-6 etc. It’s ‘six six’ not ‘sixty-six.’
It’s like the BTecs, where you can get MMM or DDM etc if you are doing an extended diploma which is worth 3 A levels.