https://whiterosemaths.com/homelearning/year-4/
there are loads of daily maths activities here on this website that you could use. Its all related to problem solving and we use these resources heavily in school so please help yourselves to some extra maths support :-)
You may also want some more practical activities to have a go at. Well... White Rose came up with a whole load of activities that require you to have a lot of fun whilst observing, making, baking etc. Why not have a look at these and have a go at some of them with the whole family. Let us know how it goes...
https://whiterosemaths.com/homelearning/easter-fun/