Here are some useful links for the children to use:

Maths 

http://uk.mathletics.com/

https://www.topmarks.co.uk/maths-games/7-11-years/problem-solving

 

English 

http://www.bbc.co.uk/schools/spellits/index.shtml

https://www.bbc.com/bitesize/topics/zhrrd2p

 

Both

https://www.arcademics.com/

http://www.crickweb.co.uk/ks2literacy.html