We use White Rose maths as a guide for our planning. They have launched a series of home learning lessons, which tie in with the learning we were completing at school. The daily activities from their website are below and if you click on the link you will also find the short daily learning video. This also now ties in with the new BBC bitesize home learning so you can watch this as well if you wish.
There are lots of websites which help with mental arithmetic for example Top Marks Daily 10.
This website allows you to customise the daily practise to your child's ability level as well as giving them new challenges.