Upper Primary Live Problems

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.

Four-digit Targetslive

Stage: 2 Challenge Level: Challenge Level:1

You have two sets of the digits 0 – 9. Can you arrange these in the five boxes to make four-digit numbers as close to the target numbers as possible?

Fifteen Cardslive

Stage: 2 Challenge Level: Challenge Level:1

Can you use the information to find out which cards I have used?

Factor-multiple Chainslive

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

Can you see how these factor-multiple chains work? Find the chain which contains the smallest possible numbers. How about the largest possible numbers?

Approaching Midnight Jump Straight Inlive

Stage: 2 and 3

If you'd like to explore the game freely, without any nudges from us, choose this version.

Approaching Midnight What Next?live

Stage: 2 and 3

Want some suggestions about where to go next with the game?

Approaching Midnight Get Startedlive

Stage: 2 and 3

Like a bit of help getting into the game? Then have a look at this.

Approaching Midnight Taking it Furtherlive

Stage: 2 and 3

Here we offer some suggestions about how you could take the Approaching Midnight game further.

Approaching Midnight the Ultimatelive

Stage: 2 and 3

Want a serious challenge? Have a look at these ideas for changing the Approaching Midnight game.

Stage 1 and 2 Toughnuts

Stage: 1 and 2

These Stage 1 and 2 problems haven't been solved yet. Why not take a look?