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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.