Retropear Chin up, lass!
Mn's always a bit bananas at the merest whiff of the 11+! For what it's worth, I think time spent 1 to 1 with your child, doing whatever, is never, ever wasted. I also think that children benefit enormously from a little 1 to 1 time with regard to academic stuff: it is just so hard in a class of 30. So, what you are doing is great - and I also know how hard it is carving out that time - so cheers to you.
zzz retropear's situation is extremely common. Many, even most, state schools won't be covering much of the ground before the end of year 6 - because it's year 6 work. They are following the NC! In Retropear's case, it sounds as though there are other issues, and Ofsted have "complained". I don't think Retropear need take that on, in addition to the 1 to 1 work. 
Anyway, all this pales into insignificance when you consider the disadvantage of only having experienced a year (or less) as an English-language speaker ...
Or the extraordinary, invisible, advantage of coming from a home where reading (in English) is a common pursuit.
Back to OP:
Times table practise; word games ... there are some very good ones on the elevenplusexams website. There's even one where you can make cards and play "pairs" with some of the high-frequency 11+ words and their looky-likies. I was very impressed by the tutor who donated that one to the 11+ community.
Fwiw, my dd hasn't passed the 11+, but I spent some time looking at literacy and numeracy with her. I'm really glad I did it, and I think we both gained from the experience.