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# Magic Crosses

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### Exploring Wild & Wonderful Number Patterns

### Magazines

### Pebbles

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Age 7 to 14

Challenge Level

- Problem
- Getting Started
- Student Solutions
- Teachers' Resources

You can use the magic cross tester below to find magic crosses of your own.

Choose five numbers and put them in the blue boxes.

A message will appear to tell you whether your cross is magic.

Press the reset button to start again.

Choose five numbers and put them in the blue boxes.

A message will appear to tell you whether your cross is magic.

Press the reset button to start again.

Reset

EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.

Let's suppose that you are going to have a magazine which has 16 pages of A5 size. Can you find some different ways to make these pages? Investigate the pattern for each if you number the pages.

Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?