This is your essential guide to building a strong foundation in mathematics. Specifically designed for Form 1 students at St. George's Secondary School, this textbook demystifies whole number arithmetic, fostering fundamental mathematical thinking and equipping you with problem-solving skills applicable to the world around you in the British Virgin Islands. Prepare for success in future math courses and in your daily life! The author brings arithmetic to life with local examples you can relate to. From calculating distances between islands to managing your pocket money, this book makes learning meaningful and engaging, showing you the real-world relevance of whole numbers. While rooted in the BVI context, the book imparts universal principles of mathematics that extend far beyond our shores. Mastering whole number arithmetic is essential across countless disciplines and provides a fundamental building block for understanding the world around us, wherever you may be. This text clearly articulates the core concepts and provides students with the necessary tools to succeed in their mathematical journey. Its scholarly rigor makes it a valuable contribution to mathematics education.