How much lighter will £5 worth of 5p's be with these new lighter coins?
Can you work out the fraction of the larger square that is covered by the shaded area?
M is the midpoint of the side of the rectangle. What is the area (in square units) of the triangle PMR?
Can you estimate the mass of insects caught by spiders in the UK each year?
The base of a pyramid has n edges. What is the difference between the number of edges the pyramid has and the number of faces the pyramid has?
Can you remove the least number of points from this diagram, so no three of the remaining points are in a straight line?
Weekly Problem 35 - 2012
How many more triangles need to be shaded to make the pattern have a line of symmetry?
How many three digit numbers formed with three different digits from 0, 1, 2, 3 and 5 are divisible by 6?
Think of any whole number. Each time you perform a sequence of operations on it, what do you notice about the divisors of your answer?
What is the largest number of digits that could be erased from this 1000-digit number, to get a surprising result?
