I Used to Know That: Maths

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.

• | By (Author): Chris Waring (Author)
• | Publisher: Michael O'Mara Books Ltd
• | Publication Date: Sep 18, 2014
• | Country of Publication: United Kingdom
• | Number of Pages: 192 pages
• | Language: NULL
• | Binding: Paperback / softback
• | ISBN-10: 1782432558
• | ISBN-13: 9781782432555