So your 6th grade dd did the same on the test as an 8th grade student. So she was performing better than average. If you had a 100 6th graders and they all did that section, she would beat 76 of them. The other 7 is the stanine which is another statistic. In that she was at 56 for the precentile.
Total reading is a combo of different subtests.
She scored the same as a student in 7th year and 5 months of school. So they are saying she has a very good vocabulary. Her comprehension was a little better than grade level. Her vocabulary pulled up her overall score. She is doing work a bit above her grade level.