I often download and use resources from various websites for fun activities to help with childrne's learning. Below are some of the websites that I use frequently.
Free maths worksheets in pdf format from years 1 to 6 that can be downloaded, photocopied and used freely. There are products to purchase, free resources and online games. Lovely printable lined and graph paper under the free resources section. Children from reception enjoyed playing the games which includes working with money, adding and subtracting, multiplying and dividing, rounding up and down, fractions, time and much more.
www.woodlands-junior.kent.sch.uk
A junior school in Kent which has an excellent resources area. Click on Woodland Resources and you will find lots of different categories from maths, geography, literacy, science, facts a day and many more. When you click on a specific category there are lots of online factsheets and games to play. However, I have noticed recently that several of the links are not valid any more. My favorite is in the maths zone where we use the online times tables game.
A lovely website all about Great Britain including things like "what's on this month", food, history, the weather, sports, unusual customs.
https://readingeggs.co.uk/about/why-it-works
Reading Eggs is a lovely app where children as young as 2 can learn to use a tablet or computer and play games learning to read and do maths in a fun way.