Live Problems - Stage 3 & 4

Each time you visit the NRICH site there will be some activities which are 'live'. That means we are inviting you to send us your solutions and we will publish a selection of them, along with your name and school. If you'd like to read more about what we're looking for, read this short article.

About Averagelive

Stage: 3 Challenge Level: Challenge Level:1

Can you find sets of numbers which satisfy each of our mean, median, mode and range conditions?

Unequal Averageslive

Stage: 3 and 4 Challenge Level: Challenge Level:1

Play around with sets of five numbers and see what you can discover about different types of average...

Wipeoutlive

Stage: 3 and 4 Challenge Level: Challenge Level:2 Challenge Level:2

Can you do a little mathematical detective work to figure out which number has been wiped out?

The Lives of Presidentslive

Stage: 3 and 4 Challenge Level: Challenge Level:1

Do Presidents of the USA live longer now than in the past?

Drawing Squareslive

Stage: 3 and 4

Take a look at the video showing squares drawn on dotty grids...

Are We Nearly There?live

Stage: 3 and 4

Can you describe the route followed by the arrows?

Stage 3 and 4 Toughnutslive

Stage: 3 Challenge Level: Challenge Level:1

These Stage 3 and 4 problems have not yet been solved. Can you be the first?