Equal circles can be arranged so that each circle touches four or six others. What percentage of the plane is covered by circles in each packing pattern? ...
Prove that the shaded area of the semicircle is equal to the area of the inner circle.
A political commentator summed up an election result. Given that there were just four candidates and that the figures quoted were exact find the number of votes polled for each candidate.
If the base of a rectangle is increased by 10% and the area is unchanged, by what percentage is the width decreased by ?
A group of interactive resources to support work on percentages Key Stage 4.
An activity based on the game 'Pelmanism'. Set your own level of challenge and beat your own previous best score.
Match the cards of the same value.
Can you match the cards and figure out whether the tabloid headlines can be trusted?