Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?
Julia introduces the 'Lucky Dip model', and the accompanying interactivity, which take into account the impact of herd immunity.
In a town there are three supermarkets which each have a special deal on some products. If you bought all your shopping in one shop, which would be the cheapest?
L triominoes can fit together to make larger versions of themselves. Is every size possible to make in this way?
Calculate probabilities associated with the Derren Brown coin scam in which he flipped 10 heads in a row.
Find the relationship between the locations of points of inflection, maxima and minima of functions.
There is a clock-face where the numbers have become all mixed up. Can you find out where all the numbers have got to from these ten statements?
