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Take three whole numbers. The differences between them give you three new numbers. Find the differences between the new numbers and keep repeating this. What happens?
Change the squares in this diagram and spot the property that stays the same for the triangles. Explain...
How many different colours of paint would be needed to paint these pictures by numbers?
A point moves on a line segment. A function depends on the position of the point. Where do you expect the point to be for a minimum of this function to occur.
Starting with one of the mini-challenges, how many of the other mini-challenges will you invent for yourself?
Which of these triangular jigsaws are impossible to finish?
A polite number can be written as the sum of two or more consecutive positive integers, for example 8+9+10=27 is a polite number. Can you find some more polite, and impolite, numbers?
Can you find some Pythagorean Triples where the two smaller numbers differ by 1?