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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Advanced Problem Solving Module 21

### How to Solve Unusual Exams Questions

### Probably a Code?

### Torus Patterns

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This module shares a selection of "unusual" STEP and other advanced mathematics examinations questions and offers advice on solving problems that do not fit easily into a topic category.

Age 16 to 18

What is an "unusual" STEP and other advanced mathematics examinations question, and how might you solve such a thing?

Age 16 to 18

Challenge Level

Is the regularity shown in this encoded message noise or structure?

Age 16 to 18

Challenge Level

How many different colours would be needed to colour these
different patterns on a torus?