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CBSE Class 7  >  Class 7 Notes  >  Mathematics (Ganita Prakash) - New NCERT Part 1 & 2  >  Unit Test: Large Numbers Around Us

Large Numbers Around Us Extra Questions And Answers - Class 7 Mathematics | exam ready solutions

Maximum Marks: 30
Attempt all questions

  • Question numbers 1 to 5 carry 1 mark each.
  • Question numbers 6 to 8 carry 2 marks each.
  • Question numbers 9 to 11 carry 3 marks each.
  • Question numbers 12 to 13 carry  5 marks each.

Q1. How many zeros are in one crore? (1 Mark)
(a) 5
(b) 7
(c) 9
(d) 8

Q2. In the Indian system, the number 5,23,456 is read as: (1 Mark)
(a) Five lakh twenty-three thousand four hundred fifty-six
(b) Five crore twenty-three thousand four hundred fifty-six
(c) Fifty-two lakh three thousand four hundred fifty-six
(d) Five lakh three thousand four hundred fifty-six

Q3. What is the place value of 7 in the number 4,87,231? (1 Mark)
(a) 7,000
(b) 70,000
(c) 7,00,000
(d) 700

Q4. State whether the following statement is True or False:  (1 Mark)
"In the International system, 1 crore is equal to 10 million."

Q5. What is the smallest 7-digit number in the Indian system? (1 Mark)
(a) 1,00,000
(b) 10,00,000
(c) 1,00,00,000
(d) 10,00,00,000

Q6. Write the number 8,76,543 in words using the Indian system and the International system. (2 Mark)

Q7. Round the number 4,56,789 to the nearest ten thousand. (2 Mark)

Q8. Calculate the number of days required to taste 1 lakh varieties of an item if you taste 4 varieties per day. (2 Mark)

Q9. Write the number 3,45,67,890 in expanded form using the Indian system. (3 Mark)

Q10. A building is 5 metres per floor. How many floors are needed to reach a height of 250 metres? If the height is increased to 260 metres, how many floors are required (round up to the nearest whole number)? (3 Mark)

Q11. Compare 25 lakh and 2 million using '<', '>', or '='. Show your working. (3 Mark)

Q12. A city has a population of 85,00,000. If each bus can carry 40 people, calculate how many buses are needed to transport the entire population. Round the number of buses to the nearest thousand and explain why rounding is useful in this context. (5 Mark)

Q13. Using the shortcut method, calculate 236 × 25. Then, verify the answer using standard multiplication. Calculate 236 × 50 using the shortcut method and verify using standard multiplication. (5 Mark)

You can access the solutions to this Unit Test here.

The document Unit Test: Large Numbers Around Us is a part of the Class 7 Course Mathematics (Ganita Prakash) Class 7 - New NCERT Part 1 & 2.
All you need of Class 7 at this link: Class 7

FAQs on Unit Test: Large Numbers Around Us

1. How do I read and write numbers in the Indian number system for Class 7 Maths?
Ans. The Indian number system groups digits in twos from right to left after the first three digits: ones, tens, hundreds, then thousands, lakhs, and crores. For example, 5,23,45,678 is read as five crore twenty-three lakh forty-five thousand six hundred seventy-eight. This differs from the international system, which uses millions and billions instead of lakhs and crores.
2. What's the difference between place value and face value of digits in large numbers?
Ans. Face value is the digit itself, regardless of position-the face value of 5 in 5,23,45,678 is simply 5. Place value multiplies the digit by its position's worth: the 5 here equals 5 crores or 5,00,00,000. Understanding both helps students correctly interpret and manipulate large numbers around us in real contexts.
3. How do I compare and arrange large numbers in ascending and descending order?
Ans. Compare numbers by first checking digit count-more digits means a larger number. If counts match, compare digits left to right. For example, 45,23,567 exceeds 44,99,999 because both have eight digits, but the second digit (5 vs. 4) determines the larger value. This method applies to comparing populations, distances, or financial data.
4. Why do we use commas and separators when writing large numbers?
Ans. Commas break large numbers into manageable groups, making them easier to read and reducing errors. The Indian system uses commas after hundreds, then every two digits: 12,34,56,789. This standardised notation helps students, businesses, and government communicate numerical data clearly without misinterpretation.
5. What are some real-world examples of large numbers that Class 7 students encounter daily?
Ans. Large numbers appear everywhere: India's population exceeds 140 crores, the Earth's distance from the Sun is about 15 crore kilometres, and annual government budgets reach lakh crores of rupees. Understanding crores, lakhs, and their comparisons helps students grasp the scale of geographical, demographic, and economic data relevant to their daily environment.
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Introduction of Unit Test: Large Numbers Around Us in English is available as part of our Mathematics (Ganita Prakash) Class 7 - New NCERT Part 1 & 2 for Class 7 & Unit Test: Large Numbers Around Us in Hindi for Mathematics (Ganita Prakash) Class 7 - New NCERT Part 1 & 2 course. Download more important topics related with notes, lectures and mock test series for Class 7 Exam by signing up for free. Class 7: Unit Test: Large Numbers Around Us
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