This comprehensive textbook, 'Al-Mu'asir in Contemporary Mathematics,' is meticulously designed for tenth-grade students to master modern mathematical concepts. Authored by Mohammed Al-Lahham and a team of experts, it delves into core areas such as advanced algebra, coordinate geometry, trigonometry, and introductory statistics. Each chapter features clear explanations, solved examples, and a wide range of exercises that reinforce learning and develop critical problem-solving skills, preparing students for advanced studies and examinations.