### Prompt Cards

These two group activities use mathematical reasoning - one is numerical, one geometric.

### Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

### Exploring Wild & Wonderful Number Patterns

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

# A Dotty Problem

## A Dotty Problem

Starting with the number $180$, take away $9$ again and again, joining up the dots as you go.

Watch out - don't join all the dots!

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### Why do this problem?

This problem is a different way of practising the nine times table. It also provides a context in which you can discuss mental strategies for taking away nine.

### Key questions

What do you get if you take away nine from that number?
How could you work it out?
Can you think of another way to do it?

### Possible extension

Children could make their own version for counting backwards in twelves.