Have a go on the Top Marks website. There are lots of good games and activities. 

Try Robot addition.  This can be accessed using the following link:

https://www.topmarks.co.uk/addition/robot-addition

Try the game hit the button. This can be accessed using the following link:

https://www.topmarks.co.uk/Search.aspx?q=hit%20the%20button

Number bonds - Make 10 and Addition within 10.

Doubles - Doubles to 10.

Halves - Halves to 10.