Can you set the logic gates so that the number of bulbs which are on is the same as the number of switches which are on?

Using balancing scales what is the least number of weights needed to weigh all integer masses from 1 to 1000? Placing some of the weights in the same pan as the object how many are needed?

It's like 'Peaches Today, Peaches Tomorrow' but interestingly generalized.

What day of the week were you born on? Do you know? Here's a way to find out.

However did we manage before calculators? Is there an efficient way to do a square root if you have to do the work yourself?

Can you think like a computer and work out what this flow diagram does?

Can you set the logic gates so that this machine can decide how many bulbs have been switched on?

What will happen when you switch on these circular circuits?

Number sequences and geometric properties nicely connected in this solution by Esther

Learn about the link between logical arguments and electronic circuits. Investigate the logical connectives by making and testing your own circuits and fill in the blanks in truth tables to record your findings.

Most stories about the history of maths seem to be about men. Here are some famous women who contributed to the development of modern maths and prepared the way for generations of female mathematicians.

Here is a Sudoku with a difference! Use information about lowest common multiples to help you solve it.