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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Secondary Live Problems

### Factors and Multiples PuzzleLive

### Shapely PairsLive

### Product SudokuLive

### Surprising TransformationsLive

### What's That Graph?Live

### Kite in a SquareLive

### Whose Line Graph Is it Anyway?Live

## You may also like

### Try out the mathematically creative tasks on our new Wild Maths site

Or search by topic

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

The last day for sending us solutions to these live problems is Monday 4th March 2024.

Age 11 to 14

Challenge Level

Using your knowledge of the properties of numbers, can you fill all the squares on the board?

Age 11 to 14

Challenge Level

A game in which players take it in turns to turn up two cards. If they can draw a triangle which satisfies both properties they win the pair of cards. And a few challenging questions to follow...

Age 11 to 16

Challenge Level

The clues for this Sudoku are the product of the numbers in adjacent squares.

Age 14 to 16

Challenge Level

I took the graph y=4x+7 and performed four transformations. Can you find the order in which I could have carried out the transformations?

Age 14 to 18

Challenge Level

Can you work out which processes are represented by the graphs?

Age 14 to 18

Challenge Level

Can you make sense of the three methods to work out what fraction of the total area is shaded?

Age 16 to 18

Challenge Level

Which line graph, equations and physical processes go together?

Why not get your creative juices flowing by trying out some of the tasks on our new website Wild Maths?