Also as the exam has been bought forward 3 months , i hope they are not going to include questions on work which has not been covered yet .
It is my understanding that there will be questions in the paper that is not even on the curriculum until the last term of year 6! For instance, my daughter has not covered algebra at all, yet looking at papers, there seems to be quite a few algebraic questions.
I think you have to accept that the 11+ doesn't test what has been covered in the maths lessons at school. This is why purchasing practice papers gives you a better idea of what to expect. I was teaching my son algebra several months before the 11+. Thankfully he passed, scoring over 120 on the maths paper.
Unfortunately, schools don't teach VR, so have to rely on a tutor or help your child get loads of practice.