Are you a maths whizz? Test yourself on questions Sheffield schoolboy answered to claim UK crown
A Sheffield schoolboy is preparing to take on some of the world's best young mathematicians after winning a UK title.
Yuji Okitani, from Crosspool, won the UK final of the Who Wants to Be a Mathematician competition and is now jetting off to the US for the grand final, but could you answer the questions he faced to earn his place there?