Another topic I've found really hard to resource is identities - shame as it's a great skill to practice lots of different parts of algebra at once and comparing coefficients is a really useful skill to have in your locker going forward to A Level.
I've made this which has a few different phases (with/without brackets, single/double brackets) that I thought I'd share.
There's a bunch to the left of the sheet that look like the ones above and if you scroll to the right there's another bunch that are slightly easier (no/fewer brackets).
Everything randomly generated, so a limitless number of problems (and answers) - new every time you open.
Formatted to present nicely on a board just thrown up or as a screengrab.
Hope it's of use to some.
