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I Used to Know That

Extent: 192 pages

Size: 198x129mm

Publication Date:

Price: £9.99

ISBN: 9781843174745

Categories: Maths & English, Reference

About the Book

Brush up on your mental arithmetic, including percentages, averages and recurring decimals or work on your trigonometry skills, from Pythagoras Theorem to triangle areas and angles. I Used To Know That: Maths is a fun and accessible way to re-visit all those useful tips and maths tricks that you have forgotten from your school days.

Extent: 192pages

Size: 198x129mm

Publication Date: 18/09/2014

Price: £5.99

ISBN: 9781782432555

Categories: Maths & English, Reference

About the Book

Brush up on your mental arithmetic, including percentages, averages and recurring decimals or work on your trigonometry skills, from Pythagoras Theorem to triangle areas and angles. I Used To Know That: Maths is a fun and accessible way to re-visit all those useful tips and maths tricks that you have forgotten from your school days.

Publication Date: 18/05/2012

Price: £5.99

ISBN: 9781843179344

Categories: Maths & English, Reference

About the Book

Brush up on your mental arithmetic, including percentages, averages and recurring decimals or work on your trigonometry skills, from Pythagoras Theorem to triangle areas and angles. I Used To Know That: Maths is a fun and accessible way to re-visit all those useful tips and maths tricks that you have forgotten from your school days.

About the Author

Chris Waring studied for a degree in Mechanical Engineering at Imperial College, London before becoming a maths teacher. Since then he has taught small children and Oxbridge candidates and everybody in between. He is the author of Maths in Bite-sized Chunks and From Zero to Infinity in 26 Centuries, also published by Michael O’Mara Books.

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