Stamps


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The world’s supply of stamps has vanished! 

The only supply left is a dusty old pile of 4p and 9p stamps. 

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If you wanted to post a parcel that cost 48p would you be able to post it?

 

 What other priced parcels could you send?  Which priced parcels couldn’t you send? Why?

After a particular number it is possible to send every priced parcel.  What is that number?

Some prices can be made with different combinations of stamps.  Can you identify these?  What is special about these numbers?

If you only had 5p and 7p stamps could you send a parcel that cost £2.10? Try and find as many different combinations as you can.

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Key Stage 1

A post office only has 1p, 5p and 10p stamps.

Investigate what priced envelopes you can send.

Can you find different ways of sending a 20p envelope?

How many different combinations of stamps are there for this envelope?

Investigate different combinations for other priced envelopes.