Math Chapter-5

🎲 Number Play

Class 8 NCERT • Chapter 5

✍️ Type your answer → Click "Check Answer" → If wrong, step-by-step solution appears

📚 BOOK QUESTIONS (From NCERT Chapter)

Consecutive Numbers, Parity, Divisibility, Remainders, Digital Roots, Cryptarithms

⭐ EXTRA PRACTICE QUESTIONS (30 Problems)

Divisibility rules, remainders, digital roots, number patterns, cryptarithms

💡 Quick Tips: Sum of digits divisible by 3 → number divisible by 3 • Sum of digits divisible by 9 → number divisible by 9 • Alternating sum of digits divisible by 11 → number divisible by 11 • Digital root = remainder when divided by 9 (except 9 itself)