Maths on the Back of an Envelope: Clever ways to (roughly) calculate anything. An entertaining introduction to mental maths and problem solving
by HarperCollins Publisher: Unknown Type
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£10.99
SKU SNG6923
ISBN
9780008444495
Author
Eastaway, Rob
Maths on the Back of an Envelope: Clever ways to (roughly) calculate anything. An entertaining introduction to mental maths and problem solving