A KEY TO FARRAR'S ARITHMETICAL PROBLEMS

Dark green cloth over boards, Floriated design stamped in blind to both top and bottom boards. The spine simply bears the singular word "Key", in gilt. Some minor staining and foxing, but still solidly bound and eminently presentable 160+ years later. Teacher's "Key" -- i.e. answers, to 1000 mathematical problems. The (much republished but exceedingly rare in the original) book for which this key serves as Teacher's copy is entitled: "Arithmetical Problems, or Questions in Arithmetic: For the Use of Advanced Classes in School. WorldCat locates three actual physical copies in libraries worldwide. The AI definition is as follows: "This book is a collection of arithmetic problems that gradually increase in difficulty, providing a thorough review of basic mathematical operations and posing intriguing challenges for students to solve. These problems are presented without rules or explanations, encouraging readers to develop their problem-solving abilities and think critically. The book covers a wide range of topics, from simple addition and subtraction to complex geometry and algebra. Additionally, it includes practical questions related to everyday life, making mathematics relevant and applicable to real-world situations. With its comprehensive approach and emphasis on independent thinking, this book is an invaluable resource for students seeking to master arithmetic and gain a deeper understanding of mathematical concepts.".…