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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# I Wonder ...?

### Creating Cubes

### Number Sandwiches

### Sweets in a Box

### Making Maths: Birds from an Egg

## You may also like

### Digging Into Geometry

### More Playing with Numbers Upper Primary

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

30 April (Primary), 1 May (Secondary)

30 April (Primary), 1 May (Secondary)

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These tasks are chosen to tempt you to have a go and perhaps ask questions such as "I wonder what would happen if ...? and 'Could I ...?

Age 7 to 11

Challenge Level

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.

Age 7 to 14

Challenge Level

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

Age 7 to 11

Challenge Level

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?

Age 7 to 11

Challenge Level

Can you make the birds from the egg tangram?

Dig deeply into geometrical ideas by having a go at the tasks in this Primary student feature.

More resources to support understanding multiplication and division through playing with numbers