SSC Lesson 1: Number System
Learning Objectives
- Understand place value, divisibility and common number properties.
- Work confidently with factors, multiples, HCF and LCM.
- Apply number-system concepts to SSC-style objective questions.
Core Concepts
Build speed by learning divisibility rules and factorisation methods. Practise HCF and LCM using both prime-factor and short methods where appropriate.
Quick Practice
Attempt a timed set covering divisibility, factors, HCF, LCM and basic remainder concepts. Record the questions that take the most time for later revision.
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