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Number Round Up

Arrange the numbers 1 to 6 in each set of circles below. The sum of each side of the triangle should equal the number in its centre.

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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?

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My coat has three buttons. How many ways can you find to do up all the buttons?


Stage: 1 and 2 Challenge Level: Challenge Level:2 Challenge Level:2
How many plants have you got in each circle?
What could you do to make the correct totals?