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Matchsticks
Age 7 to 11
Challenge Level 
| Imagine a matchstick. |  |
| How many more are needed to make a square? How many more need adding to make yet another square along side it? Carry on adding more squares ... |
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| How many matches have you added? How many matches are there when you have made 10 squares in the row? 20 squares? 50 squares? |
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