Crossnumber Puzzles tournament-of-towns This book brings together hundreds

This book brings together hundreds of motivating and exciting questions set in the years 1999 to 2005

arithmetic sequences

Recommended as extension material for students in years 9–10

Author: A Liu

Updated in 2021

Crossnumber Puzzles tournament-of-towns This book brings together hundredsCrossnumber puzzles are something akin to detective stories. Clues are given, but the implications of the clue needs to be worked out before it is applied in furthering the solution of the puzzle. A unique feature of this book is that each puzzle comes with a solution guide which gives one possible order for solving the puzzle. The solution guide shows which cell or cells to tackle next, without showing how to do it. Many of the clues in the puzzles