Puzzle activity book of unlock the padlock code for adults , and a very good activity book for adults to develop the spirit of reasoning and analysis , for example : - The 1st digit is the multiplication of the 2nd digit ...........- The 4th digit of the padlock is equal to the 1st digit and the sum of the 4th digit and the 2nd digit is 12 by 3 and also is less than 12 .......... this book is a very good gift for family and friends.
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Librería: WorldofBooks, Goring-By-Sea, WS, Reino Unido
Paperback. Condición: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. Nº de ref. del artículo: GOR014608606
Cantidad disponible: 1 disponibles