As Easy as Pi
Stuff about Numbers that isn't (just) Maths
Numbers are all-pervasive in our world; Pythagoras even said they rule the universe. This guide to the numbers of everyday life explains how they influence our religion, myth, fiction and linguistic idioms, why some numbers are considered lucky or unlucky, how they are exploited in games and scams, and their vital role in the realms of mathematics and science.
The I Used to Know That Maths Activity Book
Stuff You Forgot From School
This elementary refresher course, aimed at adults wishing to revive their maths skills, explains the key concepts of arithmetic, fractions, probability, statistics, algebra, geometry and trigonometry. Simple step-by-step quizzes on each subject (100 in total) include straightforward calculations, equation solving and multiple-choice questions. There are also a few shapes to draw. Answers are provided at the back.