MegamathsLengthSchool Radio Duration: 15 minutesFirst broadcast: Thu 6th May 2010, 03:15 on School RadioLatest broadcast: Thu 12th May 2011, 03:15 on School RadioAvailable for over a yearListen nowMore fun and games with mental maths…this time the questions focus on Length.GenresLearningPrimaryBrandMegamaths Source: BBC Online