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Triangle Animals

How many different ways can you find to join three equilateral triangles together? Can you convince us that you have found them all?

Triple Cubes

This challenge involves eight three-cube models made from interlocking cubes. Investigate different ways of putting the models together then compare your constructions.

Order, Order!

Can you place these quantities in order from smallest to largest?

The Add and Take-away Path

Age 5 to 7
Challenge Level

Try it out!
You could start with $10$ counters and add more or take them away as you move along your path.  Then, when you reach the end of the path, you can count the number of counters you have left to find out your score.  
How will you make sure you remember the paths you've tried?
How will you remember the score each time?
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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NRICH is part of the family of activities in the Millennium Mathematics Project.