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Is there a best way to stack cans? What do different supermarkets do? How high can you safely stack the cans?

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Consecutive Numbers

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

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Tea Cups

Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.

It's a Fence!

Stage: 1 and 2 Challenge Level: Challenge Level:1

What can you say about the circles and trees represented as dots?
What do you think about the numbers?