My First Book of Let’s Do Mental Maths – Level 3 is an engaging and activity-based maths workbook designed to help young learners develop stronger mental-maths skills. It provides plenty of practice in essential areas such as addition, subtraction, multiplication, division, number relationships, patterns, comparisons, and problem-solving.The carefully graded exercises encourage children to calculate mentally, think logically, and improve their speed and accuracy. With simple, child-friendly activities, the book helps learners build confidence and develop a solid foundation in mathematics while making learning enjoyable.