Calculation Sudoku upgrade version: kenken Ken Ken puzzle (addition and subtraction articles)(Chinese Edition) by LAN TIAN

paperback. New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Pub Date: 2013 Pages: 141 Language: Chinese in Publisher: China Water Power Press KenKen Ken Ken. also known as the smart grid is now the most popular in the world. one of the computing class puzzle. The books of this series. a collection of questions after the author elaborate. screening. and strive to achieve the difficulty of steady improvement. and problem-solving skills fully changeable. This series of books by two standard divided into four. to meet the different needs and level enthusiasts choose. 6 6.7 7 Pian topics disk smaller. suitable for beginners and middle school students. 8 8.9 9 Pian which topics disk larger. suitable for adults or have some basis for primary and secondary school students. Addition and subtraction chapter four computing articles difficulty span than larger. more suitable would like to start with the basics and slowly practice to grow as a master or like the comprehensive exercises enthusiasts Contents: Preface Chapter KenKen Ken Ken puzzle Introduction Chapter II KenKen Ken Ken puzzle basic the Solution Chapter KenKen Ken Ken puzzle exercises first section 7x7 addition and subtraction KenKen Ken Ken 60 questions Section II of 8x8 KenKen Ken Ken addition and subtraction to addition and subtraction of the 70 questions in section III 9x9 KenKen Ken Ken 70 questions Chapter KenKen Ken Ken puzzle exercises answer Satisfaction guaranteed,or money back.