The NFER nelson tests are standardised in the same way as the 11+ ie,age adjusted.The highest score is 141 and 100 is seen as an average like an iq.So the scores can indicate suitability for grammar,
The 11+ on Wirral consists of 2 verbal reasoning papers and to gain a place you need to score 236 when both scores are added together,
ie 118 as an average on each
Your daughter scores are great for writing and maths,and very close for english,I'm no expert but think she'd have a good chance,I would suggest you try some of the free papers on this site (go to Interactive cd's there are lots of examples.
Is she taking the exam in November this year /if so then I suggest you start some practising soon!
There are lots of others on wirral who will offer you advice, so good luck!
Which Grammar are you thinking of ?