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.

Calendar Caperslive

Stage: 3 Challenge Level: Challenge Level:1

Choose any three by three square of dates on a calendar page...

Latin Numberslive

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Can you create a Latin Square from multiples of a six digit number?

Counting Factorslive

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Is there an efficient way to work out how many factors a large number has?

Building Tetrahedralive

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

Can you make a tetrahedron whose faces all have the same perimeter?

Gift of Gemslive

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

Four jewellers share their stock. Can you work out the relative values of their gems?

Rationals Between...live

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

What fractions can you find between the square roots of 65 and 67?

Wild Maths - share what you have tried and discoveredlive

Stage: 3 and 4

Here's how you can send your solutions to these Wild Maths problems. You may be featured in our Showcase!

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?