KS3 maths practice

[hopefullyhelpfully]

DD 12 is in year 8 of an academically selective school. She passed the entrance due to high literacy scores and a partial sports scholarship.
She's recently been moved to the lowest (of 6) maths sets, and her most recent exam tracking score was 55%. I can't fault the school- she's in a set with only 8 others plus teacher and TA, and she's given additional support at lunchtime maths club.

However, whilst she can do all the maths if it's presented as an straightforward maths question she really struggles with questions when she had to decide which technique to use and how to apply it.

Can anyone recommend any books or resources which are just the opportunity to practice questions...?
Tia

There are, I think KS3 CGP workbooks with answers (there certainly are for GCSE).

Presumably she knows RUCESAC? (read, underline, choose, estimate, solve, answer, check)

I find that substituting simpler numbers often helps as the answer then becomes 'obvious', and then you work out what calculation you did for the obvious answer then use it with the real numbers iyswim?

(e.g. can't remember how to add fractions? try 1/2 + 1/4 = 3/4, how did you get that? oh yes you had to turn the 1/2 into 2/4 to get them the same -> bingo, put them over a common denominator).

I also have a rule of thumb for DD2, if you can't see what the calculation is, then it is probably divide, (as that's the one she normally doesn't 'see').

Hi, thanks. The CGP workbooks have a lot of theory and explanation and not quite enough questions but I'll buy them anyway. I was hoping more for pages and pages of practice questions...

Like the simpler numbers trick!

For GCSE there are whole books (white cover) with questions only and zero explanation. Have a look because the foundation GCSE workbook will easily cover most KS3 stuff and even the higher level goes quite low imo.

My two KS3 kids sometimes use Khan Academy (I find the pre-algebra and over a good fit for KS3), AAA math, and MEP maths which has books and an interactive online version (saving them arguing with me on the answer) and tends to have a lot of practice problems.