30 Second Challenge: Super Quick Adding And Subtracting in Your Head - Couverture souple

 
9780721434469: 30 Second Challenge: Super Quick Adding And Subtracting in Your Head
Couverture souple
ISBN 10 : 0721434460 ISBN 13 : 9780721434469
Editeur : Ladybird, 1999

Synopsis

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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Éditeur
Ladybird
Date d'édition
1999
Langue
anglais
ISBN 10 
0721434460
ISBN 13 
9780721434469
Reliure
Couverture à spirales
Nombre de pages
64
Coordonnées du fabricant
non disponible
Personne responsable
KreGa Onlinehandel GmbH
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info@krega-onlinehandel.de

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