set of 4 books for only $12
original price at $16 each !
good condition except slightly yellow
[Details of books
Source: Wikipedia: https://en.wikipedia.org/wiki/Murderous_Maths
The Murderous Maths books have been published in over 25 countries. The books, which are aimed at children aged 8 and above, teach maths, spanning from basic arithmetic to relatively complex concepts such as the quadratic formula and trigonometry. The books are written in an informal similar style to the Horrible Histories, Horrible Science and Horrible Geography series, involving evil geniuses, gangsters, love stories and smelly burgers, and lots more wacky comedies.]
