Koll, Hilary. Survival skills / by Hilary Koll, Steve Mills and Jonny Crockett. - Tunbridge Wells : Ticktock, 2006. - 32 p. : ill ; 28 cm. - Using maths . - Using maths . ISBN: 1860079903 Subjects--Topical Terms: Mathematics--Problems, exercises, etc.--Juvenile literature.Survival skills--Mathematics--Juvenile literature.