Last one standing
Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
Can you find the hidden factors which multiply together to produce each quadratic expression?
What is the largest number which, when divided into these five numbers in turn, leaves the same remainder each time?
A mother wants to share some money by giving each child in turn a lump sum plus a fraction of the remainder. How can she do this to share the money out equally?
Many numbers can be expressed as the difference of two perfect squares. What do you notice about the numbers you CANNOT make?
Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?
A spider is sitting in the middle of one of the smallest walls in a room and a fly is resting beside the window. What is the shortest distance the spider would have to crawl to catch the fly?
How many intersections do you expect from four straight lines ? Which three lines enclose a triangle with negative co-ordinates for every point ?