30 marvellous maths topics for enquiring mini minds. What is maths? Why do we need it? Can birds count? What is the biggest number conceivable? Maths in 30 Seconds answers these and other questions in 30 awesome topics. Each topic is presented in a concise 30-second summary, supported by a 3-second flash soundbite and full-colour artwork. Fun, active elements for kids to make-and-do support the topics, encouraging them to test, explore, and discover more. With fast facts, mini missions, and engaging artwork, this book is an exciting introduction to the amazing world of maths.