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A Romantic Riddle

Age 7 to 11
Challenge Level Yellow starYellow star
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Well done to Billie-Jo (Tattingstone School, UK), Rowena, Charlotte and Ross (Stockton) and Timothy, Vincent and Kenneth (Catholic High School, Singapore) for correct solutions.

Four particularly well-presented graphic solutions came from Chris, Michael and someone else from Crofton Junior School, and Daniel (Anglo-Chinese School, Singapore).

This one comes from Rayner (Tao Nan School, Singapore):

$5 + 5 + 2 = 12$ rows


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A Story about Absolutely Nothing

This article for the young and old talks about the origins of our number system and the important role zero has to play in it.

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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.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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