Easter maths challenge: 90 days of Sumdog

By Mr. Setchell on Sunday, March 27, 2016 in Maths. 8 Comments

Over the 90 days since Christmas, how often on average do you think BJS mathematicians answered a question on Sumdog? Was it . . . a) Every 60 seconds? b) Every 6 seconds? c) Every 6 minutes? Based on your answer, can you use your time facts to calculate  and  explain  how many questions were […]