Play the game at this link: https://www.bbc.co.uk/bitesize/articles/zr2hnrd to revise your related facts - go to Activity 3 (Karate Cats)
Click the link
Choose + and -
Then your level.
Then complete Related Facts sheet below.
If you want a challenge do some reasoning and problem solving below.
Do as little or as much as you want.
You can dip in and out of problems, you do not need to do them in order.