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Days and Dates

Investigate how you can work out what day of the week your birthday will be on next year, and the year after...

Prime Magic

Place the numbers 1, 2, 3,..., 9 one on each square of a 3 by 3 grid so that all the rows and columns add up to a prime number. How many different solutions can you find?

Is it Magic or Is it Maths?

Here are three 'tricks' to amaze your friends. But the really clever trick is explaining to them why these 'tricks' are maths not magic. Like all good magicians, you should practice by trying them. Can you explain how they work?

Thousands and Millions

Age 11 to 14
Challenge Level

You could start by selecting some of the questions you consider to be easier.

You could try changing the 1000000 to 100 to make the problem simpler while you establish a correct method.

You might want to do a little research or experimentation to get some numbers to work with.