Please see below, various website addresses which you may find useful

All subjects and all ages:
Primary Homework Help | Online Games For Kids - BBC Bitesize

Maths:
Times tables games - Learn them all here! 

In particular try 'speed test X' https://www.timestables.co.uk/speed-test/ if you are in year 3 or 4 as this prepares pupils for the Statutory Multiplication Test 

Child-friendly news updates: Home - CBBC Newsround