Hardback (27 May 2010)
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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.
| ISBN: | 9781843174745 |
| Publisher: | Michael O'Mara |
| Imprint: | Michael O'Mara Books Limited |
| Pub date: | 27 May 2010 |
| DEWEY: | 510 |
| DEWEY edition: | 22 |
| Language: | English |
| Number of pages: | 192 |
| Weight: | 330g |
| Height: | 209mm |
| Width: | 140mm |
| Spine width: | 23mm |
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Paperback
Published 16 Sep 1976
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