Thank you for all the replies. Just to make one thing clear. I am not making up any homework for my children. I'm not a teacher thank goodness and we don't play at schools.
The school websites have sections which need to be completed. When completed they can play against other children/the computer and earn points which in turn equal prizes 
One at the moment does maths, the other literacy ( due to them being at different primary schools). Neither child is struggling, both are a little above average. Their schools aren't the best, not academically anyway.
I do value subjects other than maths and English. I'll be thinking of ways to broaden their horizons. I found your reply a bit snippy ticthy to be honest. Nope, I haven't read all of the literacy on the efficacy of homework.
I'm just a trying to push my children in a way I never was. Both of my children are wonderfully kind and funny people. They have scores of friends and interests. They are lovely lovely children, I'm not trying to robot them or anything like that.
Youngest DD is set homework once a week. We generally do it on a Sunday evening. It might take up to an hour depending on whether it's a making project or just work sheets. This is alongside the work they need to do online.
Eldest hasn't had homework since sats finished, which is fine by me. She just plays against classmates on the maths site.
I'm reconsidering the reading aloud ( not sure where the 'out loud' came from in my brain for the OP). The youngest has poor comprehension and like the poster above BadBadbunny said about her child, mine was just reading the words but not understanding the story. Reading aloud seems to have improved this.
Maybe once or twice a week is enough and I'll bump the reading in bed time up ( which they both enjoy)
We are home from schools/ work by 4.10 latest. Both crack straight on with whatever needs doing, then by around 5.15 are free to do whatever.
They can choose to do it later if they prefer but generally choose to get it out of the way.
Tea is usually cooked while listening to them. We've finished eating by 6ish then they have another 2.5 hours to colour/ play/ trampoline/play on the front with friends/iPad whichever.
We do lots of slow cooker/batch cooking so no major culinary skills or time needed in the week!.
I loving the idea of googling some other topics. Both would enjoy doing something like that. We already play endless games of scrabble.
Neither learn an instrument, it's out of my price range sadly.
We bake each weekend, well the kids do with Nanny while I'm at work.
We have lots and lots of down time.
I just come from a background where I was never pushed or encouraged, and subsequently never pushed or challenged myself. Both of my parents had no interest in my school work. I feel as if I could have achieved more, but it wasn't to be. I don't want the same for my two.
We now live in a very deprived area. Anything more than getting the kids to school is seen as pushy.
I'm seen as a weirdo for actually enjoying reading / learning with the children. Obviously that's not true for my entire neighbourhood, but I do feel the odd one out when I get the kids to do the things I do.. Hence my questions on here.
Hmm, an essay. Sorry. Thank you again for the replies.