As a result of media and parental attention to need for improvement of core skills, this is a fast-paced mental arithmetic book to encourage mastery of two of the four rules of number. It is part of a range of books which includes "Complete Mastery" and "Superhuman Calculator". The book recommends that children spend 15 minutes each day using this book to compete against themselves or against friends. They do the tests again and again becoming increasingly accurate and beating their own times. Eventually they should be able to do all the sum in 30 seconds and become a "30-second champion"! Children need scrap paper, a watch with a second hand, scrap paper and a calculator.
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Anbieter: WorldofBooks, Goring-By-Sea, WS, Vereinigtes Königreich
Paperback. Zustand: Very Good. As a result of media and parental attention to need for improvement of core skills, this is a fast-paced mental arithmetic book to encourage mastery of two of the four rules of number. It is part of a range of books which includes "Complete Mastery" and "Superhuman Calculator". The book recommends that children spend 15 minutes each day using this book to compete against themselves or against friends. They do the tests again and again becoming increasingly accurate and beating their own times. Eventually they should be able to do all the sum in 30 seconds and become a "30-second champion"! Children need scrap paper, a watch with a second hand, scrap paper and a calculator. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. Bestandsnummer des Verkäufers GOR000818061
Anzahl: 4 verfügbar
Anbieter: AwesomeBooks, Wallingford, Vereinigtes Königreich
Spiral-bound. Zustand: Very Good. 30 Second Challenge: Super Quick Adding And Subtracting in Your Head This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. Bestandsnummer des Verkäufers 7719-9780721434469
Anzahl: 2 verfügbar
Anbieter: MusicMagpie, Stockport, Vereinigtes Königreich
Zustand: Very Good. 1777024690. 4/24/2026 9:58:10 AM. Bestandsnummer des Verkäufers U9780721434469
Anzahl: 1 verfügbar
Anbieter: Better World Books Ltd, Dunfermline, Vereinigtes Königreich
Zustand: Good. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Bestandsnummer des Verkäufers 54901442-20
Anzahl: 1 verfügbar
Anbieter: Bahamut Media, Reading, Vereinigtes Königreich
Spiral-bound. Zustand: Very Good. Shipped within 24 hours from our UK warehouse. Clean, undamaged book with no damage to pages and minimal wear to the cover. Spine still tight, in very good condition. Remember if you are not happy, you are covered by our 100% money back guarantee. Bestandsnummer des Verkäufers 6545-9780721434469
Anzahl: 1 verfügbar
Anbieter: Brit Books, Milton Keynes, Vereinigtes Königreich
Paperback. Zustand: Used; Good. ***Simply Brit*** Welcome to our online used book store, where affordability meets great quality. Dive into a world of captivating reads without breaking the bank. We take pride in offering a wide selection of used books, from classics to hidden gems, ensuring there is something for every literary palate. All orders are shipped within 24 hours and our lightning fast-delivery within 48 hours coupled with our prompt customer service ensures a smooth journey from ordering to delivery. Discover the joy of reading with us, your trusted source for affordable books that do not compromise on quality. Bestandsnummer des Verkäufers mon0000273675
Anzahl: 3 verfügbar