problem Favourite Nutrition and cycling Age 14 to 16 Challenge level Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
problem Favourite Olympic measures Age 11 to 14 Challenge level These Olympic quantities have been jumbled up! Can you put them back together again?
problem Favourite All in a jumble Age 11 to 14 Challenge level My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
problem Favourite Thousands and millions Age 11 to 14 Challenge level Here's a chance to work with large numbers...
problem Alternative record book Age 14 to 18 Challenge level In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
problem At the pumps Age 7 to 11 Challenge level How will you find out how much a tank of petrol costs?
problem Weighing fruit Age 7 to 11 Challenge level Can you use this information to estimate how much the different fruit selections weigh in kilos and pounds?
problem Bigger or smaller? Age 14 to 16 Challenge level When you change the units, do the numbers get bigger or smaller?
problem New units for old Age 16 to 18 Challenge level Can you match up the entries from this table of units?
problem Choose your units Age 14 to 16 Challenge level Which units would you choose best to fit these situations?