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Take any prime number greater than 3 , square it and subtract one. Working on the building blocks will help you to explain what is special about your results.

Can you make doughnuts by matching these fractions, decimals and percentages?

Try adding fractions using A4 paper.

Ayah conjectures that the diagonals of a square meet at right angles. Do you agree? How could you find out?

This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!

Look at these results from past Olympic Games. How do you compare if you try some similar activities?

Weekly Problem 49 - 2013
What is the value of 2000 + 1999 × 2000?

How many integers $n$ are there for which $n$ and $n^3+3$ are both prime?