Primary Live Problems

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

Please note that these activities will stop being live after Monday 9 December.

Sizing Them Uplive

Age 5 to 7 Challenge Level:

Can you put these shapes in order of size? Start with the smallest.

How Many?live

Age 5 to 11 Challenge Level:

Have a look at these photos of different fruit. How many do you see? How did you count?


Age 5 to 11 Challenge Level:

This is an adding game for two players.


Age 7 to 11 Challenge Level:

An investigation that gives you the opportunity to make and justify predictions.

Nine-pin Triangleslive

Age 7 to 11 Challenge Level:

How many different triangles can you make on a circular pegboard that has nine pegs?