Although primarily written for students aged 11-16, these puzzles do not require a high level of syllabus knowledge, making them accessible to a wide range of ages and abilities.Two levels of difficulty are provided for each entry. There are 180 puzzles, offering two similar ones on each of a wide variety of topics. They can be used as a daily displayed competition for students to enter and a winner can be picked from the day's entries. Alternatively they can be optional lesson starters. The book helps to increase interest, to reinforce mathematical vocabulary and of course the puzzles are fun to do. Complete with answers.