Friday puzzle

Keeping up Chyanne’s great idea, here’s this week’s puzzle.

times table puzzle

Scroll down for a hint if you’re stuck – but don’t go to the hint before having a good battle with the problem yourself

Down

Down

Down

Keep going

A little further

Nearly there

Hint:  You could start with the first calculation (top left).  Try out some different numbers.  You’ll find that there is only one possible number for the purple square (remember: all of the shapes represent a number between 0 and 12).   Once you know what the purple square represents, you’ll also know the yellow semi-circle  – and then work from there.