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.

Stage 1 and 2 Toughnutslive

Stage: 1 and 2

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

What Was in the Box?live

Stage: 1 Challenge Level: Challenge Level:1

This big box adds something to any number that goes into it. If you know the numbers that come out, what addition might be going on in the box?

Break it Up!live

Stage: 1 and 2 Challenge Level: Challenge Level:1

In how many different ways can you break up a stick of 7 interlocking cubes? Now try with a stick of 8 cubes and a stick of 6 cubes.

Holeslive

Stage: 1 and 2 Challenge Level: Challenge Level:1

I've made some cubes and some cubes with holes in. This challenge invites you to explore the difference in the number of small cubes I've used. Can you see any patterns?

Four Triangles Puzzlelive

Stage: 1 and 2 Challenge Level: Challenge Level:1

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

Making Maths: Birds from an Egglive

Stage: 2 Challenge Level: Challenge Level:1

Can you make the birds from the egg tangram?

Sweets in a Boxlive

Stage: 2 Challenge Level: Challenge Level:1

How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?

Creating Cubeslive

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

Arrange 9 red cubes, 9 blue cubes and 9 yellow cubes into a large 3 by 3 cube. No row or column of cubes must contain two cubes of the same colour.

Number Sandwicheslive

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

Can you arrange the digits 1, 1, 2, 2, 3 and 3 to make a Number Sandwich?