I have a similar problem to the two mentioned above. Haven't done much practice, as just wanted to familiarise DS with the questions, and he was doing really well with the Peter Williams books. But now we're on the Letts practice papers and, although he's completing them within the time limit and is feeling quite confident, he's not scoring highly enough to pass (between 65-70% of questions right across the two papers). I don't want to dent his confidence, but I'm worried he won't pass and he really wants to go to the grammar with his brother. Most of the time it's just silly mistakes he's making, or the questions are almost ambiguous sometimes and I can see why he has answered in the way he has, and his main problem is the vocabulary questions e.g. 2 odd words out, or A is to B as X is to Y (relationship between words).
I feel as if I have left it too late to help him and just have my fingers crossed!
Does anyone know roughly what percentage of questions he would need to get right in order to pass? Would 75% be enough? He's hoping to go to QEHS.
Thanks in advance! And good luck to everyone