First Mental Arithmetic 1 is a Mental Mathematics workbook designed to help young learners develop strong calculation and problem-solving skills through regular practice. The book introduces basic arithmetic concepts in a simple and engaging manner, focusing on improving speed, accuracy, and logical thinking. With a variety of exercises and step-by-step activities, it encourages mental calculation and builds confidence in handling numbers. Ideal for classroom learning and home practice, it provides a strong foundation for future mathematical success.