How will you find out how much a tank of petrol costs?
Can you use this information to estimate how much the different
fruit selections weigh in kilos and pounds?
Grandpa was measuring a rug using yards, feet and inches. Can you
help William to work out its area?
My measurements have got all jumbled up! Swap them around and see
if you can find a combination where every measurement is valid.
These Olympic quantities have been jumbled up! Can you put them back together again?
A security camera, taking pictures each half a second, films a
cyclist going by. In the film, the cyclist appears to go forward
while the wheels appear to go backwards. Why?