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### Number and algebra

### Geometry and measure

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### Working mathematically

### For younger learners

### Advanced mathematics

# 2 Rings

Two very special circles are on the floor:

Very special because they can get bigger or smaller - as you like.

So you might like them to be like this:

Maybe you like things small - so you would have:

I'd like the blue one to grow:

Whoa! That looks different.

The Red is inside the Blue.

So the Red and the Blue can grow - just as you like.

We've seen the Red INSIDE the Blue.

Can we change things so that we might use other words like:

Have a go. Send us some pictures of what you do - we'd love to see them.

If you enjoyed this problem, you might like to try 3 Rings .

## You may also like

### Biscuit Decorations

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Age 5 to 7

Challenge Level

Two very special circles are on the floor:

Very special because they can get bigger or smaller - as you like.

So you might like them to be like this:

Maybe you like things small - so you would have:

I'd like the blue one to grow:

Whoa! That looks different.

The Red is inside the Blue.

So the Red and the Blue can grow - just as you like.

We've seen the Red INSIDE the Blue.

Can we change things so that we might use other words like:

TOUCHING?

OVERLAPPING?

OUTSIDE?

Have a go. Send us some pictures of what you do - we'd love to see them.

If you enjoyed this problem, you might like to try 3 Rings .

Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?