Distinction Mathematics Grade 5 is a learner-centered textbook developed in line with Kenya’s Competency-Based Curriculum (CBC). It covers key mathematical concepts including addition, subtraction, multiplication, division, fractions, decimals, and basic geometry such as shapes and angles. The book also focuses on measurement topics like length, mass, volume, and time. It emphasizes problem-solving and applying mathematics in real-life situations, helping learners connect classroom knowledge with everyday use. The content is presented in clear, simple language with numerous worked examples, illustrations, and practice exercises to enhance understanding and mastery of skills. This textbook is designed to develop learners’ numeracy, logical thinking, and confidence in mathematics.