https://www.bancrofts.org/junior-maths-challenge13/
Junior Maths Challenge - Bancroft's
May 21, 2012 - An independent HMC day school for children aged 7 to 18
junior maths challengebancroft
https://www.buckswood.co.uk/event/academic-uk-junior-maths-challenge-maths-block-au/
Academic - UK Junior Maths Challenge - Maths Block (AU) - Buckswood School
junior maths challengebuckswood schoolacademicblock