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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Your Solutions - Stage 4 & 5

### Flipping Twisty Matrices

### Product Sudoku

### Whose Line Graph Is it Anyway?

### Surprising Transformations

### Fix Me or Crush Me

### Square Pair

### What's That Graph?

### Kite in a Square

## You may also like

### Adding Machine

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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Age 14 to 18

Challenge Level

Investigate the transformations of the plane given by the 2 by 2 matrices with entries taking all combinations of values 0, -1 and +1.

Age 11 to 16

Challenge Level

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

Age 16 to 18

Challenge Level

Which line graph, equations and physical processes go together?

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 16 to 18

Challenge Level

Can you make matrices which will fix one lucky vector and crush another to zero?

Age 14 to 18

Challenge Level

Explore the shape of a square after it is transformed by the action of a matrix.

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?

Can you set the logic gates so that this machine can decide how many bulbs have been switched on?