Been planning lessons this weekend and have put the attached together (and solution) which I am going to use with all my year groups over the next few weeks – either as a starter or the main activity – depending on the group. So my lower years/abilities will get it as the main course and my higher years/abilities will get it as a starter as a precursor for HCF/LCM revision and doing questions in context (like the race track one from the June paper) or just because I know they’ll enjoy it and it gets them thinking logically.

I have added to the free stuff page too.