Welcome to Friday Challenge day!
See how many of these problems you can solve, either independently or with the help of someone at home. There are a couple you won't be able to do because we haven't learnt the facts yet - questions 5, 9 and 10 - but you will definitely be able to have a go at 1-4 and maybe even more than that.
Remember, several of the questions have more than one possible answer. Can you find more than one solution?