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Number Squares

Start with four numbers at the corners of a square and put the total of two corners in the middle of that side. Keep going... Can you estimate what the size of the last four numbers will be?

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I'm Eight

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Butterfly Flowers

Stage: 1 Challenge Level: Challenge Level:1

Look at the butterflies and the numbers they have. The flowers also have numbers.
Can you find $2$ butterflies to go on each flower so that the numbers on each pair of butterflies adds to the same number as the one on the flower?

Butterflies and Flowers
 

Which pair of butterflies has no flower to go to?

Which flower cannot have a pair of butterflies on it?


Printable NRICH Roadshow resource.