Find out how to count your way out of a death-trap, why multiplication can stop a hairy green spot epidemic, and meet the barmy pure mathematicians who spent years proving 5 + 0 = 5. Meanwhile, Chainsaw Charlie, Halfsmile and their gang discover that even the simplest maths can be murderous.
| Author | Kjartan Poskitt |
| Publisher | Apple Press |
| Year of publication | 1999 |
| Number of pages | 176 |
| Language | English |
| Format | Paperback |
| ISBN-10 | 439011574 |
| ISBN-13 | 9780439011570 |
| Illustrator | Philip Reeve |
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