Seven-year-old William Lunsden with his Maths Week Scotland 'Mathscot' design at the National Museum of Scotland. Photo (c) Duncan McGlynn (2)

Seven-year-old William Lunsden with his Maths Week Scotland 'Mathscot' design at the National Museum of Scotland. Photo (c) Duncan McGlynn (2).JPG
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Seven-year-old William Lunsden with his Maths Week Scotland 'Mathscot' design at the National Museum of Scotland. Photo (c) Duncan McGlynn (2)