A French-language mathematics study guide for students preparing for commercial preparatory classes. The work is organized as a set of focused fiches, each intended to review a mathematical topic and reinforce it through applied exercises with corrected solutions. Its practical structure makes it suitable for revision, exam preparation, and independent practice, especially for learners who need concise explanations followed by worked examples. The title indicates a strong emphasis on mathematics as used in business-oriented competitive examinations, covering the kinds of problems students are expected to master in this academic pathway. With 376 pages in the listed edition, the book functions as a compact course companion rather than a broad theoretical textbook.