NCERT Class 7 Maths Chapter 1 Large Numbers Around Us Extra Questions with Answers

Class 7 Maths Chapter 1 Extra Questions with Answers

Q1. Write the numeral for Seven million twenty-three thousand one hundred five.
Answer: 7,023,105

Q2. Write 8,45,67,321 in words (Indian system).
Answer: Eight crore forty-five lakh sixty-seven thousand three hundred twenty-one.

Q3. Write 45,678,901 in words (International system).
Answer: Forty-five million six hundred seventy-eight thousand nine hundred one.

Q4. What is the place value of 8 in 58,42,19,630?
Answer: 8 crore (80,000,000).

Q5. Arrange in ascending order: 8,76,543; 8,67,543; 7,98,654.
Answer: 7,98,654 < 8,67,543 < 8,76,543

Q6. Arrange in descending order: 12,45,678; 13,54,987; 11,98,765.
Answer: 13,54,987 > 12,45,678 > 11,98,765

Q7. Which is greater: 9,99,999 or 10,00,000?
Answer: 10,00,000

Q8. Write the successor of 9,99,999.
Answer: 10,00,000

Q9. Write the predecessor of 10,00,000.
Answer: 9,99,999

Q10. Round off 7,48,392 to the nearest thousand.
Answer: 7,48,000

Q11. Round off 18,76,451 to the nearest lakh.
Answer: 19,00,000

Q12. What is the difference between the Indian and International number systems?
Answer: The Indian system uses lakhs and crores, while the International system uses millions and billions.

Q13. Which digit is in the lakh place of 45,67,890?
Answer: 5

Q14. Write the expanded form of 6,08,34,215.
Answer:
6,00,00,000 + 8,00,000 + 30,000 + 4,000 + 200 + 10 + 5

Q15. Why do we use large numbers in daily life?
Answer: Large numbers are used to represent populations, distances, money, scientific data, and other quantities that cannot be expressed using small numbers.