Mind-Blowing Math: Divisibility Rules & Digital Sums Explained

Описание: 📘 Divisibility Rules & Digital Sum Concept | Complete Explanation for Competitive Exams
Mind-Blowing Math: Divisibility Rules & Digital Sums Explained
In this video, we explain the Divisibility Rules and the important concept of Digital Sum (Casting Out 9 method) in a simple and practical manner. These topics are very useful for improving calculation speed and accuracy in competitive examinations.

What you will learn in this lecture:

✅ Divisibility rules from 2 to 12
✅ Shortcut methods to quickly check divisibility
✅ Digital Sum concept and its application
✅ How to verify answers in multiplication and division
✅ Previous year type questions from competitive exams

Why this topic is important?

Frequently asked in SSC CGL, CHSL, MTS

Important for Banking, Railway, CUET, NDA, CDS

Helpful in UPSC CSAT (Quantitative Aptitude)

Strengthens number sense and calculation skills


If your basics are strong in divisibility and digital sum, you can solve many arithmetic questions faster and with confidence.

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