Whole Numbers

This CTET Paper 2 chapter builds Whole Numbers for future Classes VI-VIII maths teachers: natural versus whole sets, predecessor and successor, the number line, properties (closure, commutative, associative, distributive, identity), patterns, pedagogy of property misconceptions, low-cost TLM, and hard CTET stems. Sibling topics get one-line contrast only. Classroom voice stays with the middle-school maths teacher for exam application / परीक्षा अनुप्रयोग.