I thought other crafty Gransnetters might appreciate this (link below). I have always said to my family when I'm knitting a tricky pattern "Quiet please I'm doing maths". (I was crap at maths at school, got left behind in class).
mentalfloss.com/article/86016/6-math-concepts-explained-knitting-and-crochet
A quote for those blessed with a spouse:
Lighthearted - How long do you display Birthday Cards?


Thanks all the same but I've decided I don't need to chuck something out of my memory bank in order to make room for maths concepts 
