Maths on the Back of an Envelope: Clever ways to (roughly) calculate anything. An entertaining introduction to mental maths and problem solving
by Rob Eastaway
Rob Eastaway introduces entertaining ways to calculate and estimate without relying on exact figures or complex tools. Maths on the Back of an Envelope explores practical mental maths and problem-solving methods, making numbers more approachable for everyday questions, quick calculations, and curious minds.
About This Book
Maths on the Back of an Envelope offers an accessible introduction to mental maths and practical calculation.
Rob Eastaway presents clever ways to estimate and roughly calculate a wide range of things using simple methods.
Designed to be entertaining as well as useful, the book focuses on building confidence with numbers and approaching problems creatively.
It is a practical guide for anyone interested in improving everyday calculation and problem-solving skills.
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