Last Updated on May 4, 2025 by XAM CONTENT
Hello students, we are providing case study questions for class 7 Maths. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 7 Maths. In this article, you will find case study questions for cbse class 7 Maths chapter 1 Large Numbers Around Us.
| Chapter | Large Numbers Around Us |
| Book | Ganita Prakash for Grade 7 |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 7 |
| Subject | Maths |
| Useful for | Class 7 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 7 Maths Chapterwise Case Study |
Case Study Questions on Large Numbers Around Us
Case Study Question 1
Passage: Roxie and the Rice Varieties
Roxie read about over 1 lakh varieties of rice once grown in India. She was curious: if she and her brother Estu tried one variety per day, would they be able to taste them all in a 100-year lifetime? They calculated the number of days in 100 years and found that even eating 3 varieties per day might not be enough to reach the lakh mark.
Q1. How many days are there approximately in 100 years (ignoring leap years)?
(a) 36,500
(b) 10,000
(c) 100,000
(d) 365,000
Answer: (a)
Difficulty Level: Easy
Explanation: 100 years × 365 days = 36,500 days.
Q2. If Roxie eats 3 varieties of rice every day for 100 years, how many varieties will she try?
(a) 30,000
(b) 1,09,500
(c) 36,500
(d) 3,65,000
Answer: (b)
Difficulty Level: Moderate
Explanation: 3 × 365 × 100 = 1,09,500 varieties.
Q3. If one lakh = 1,00,000, then how many zeroes does one lakh have?
(a) 4
(b) 5
(c) 6
(d) 7
Answer: (b)
Difficulty Level: Easy
Explanation: One lakh = 1 followed by 5 zeros = 1,00,000.
Q4. Which place value system writes 1,00,000 as 100,000?
(a) Indian system
(b) Binary system
(c) American/International system
(d) Ancient Roman system
Answer: (c)
Difficulty Level: Easy
Explanation: The international system uses 3-digit comma grouping, i.e., 100,000.
Case Study Question 2:
Passage: Creative Chitti and the Magic Calculators
Creative Chitti is a fun calculator that can press multiple buttons like +1, +10, +100, +1000, and so on. It wants to find different ways to form large numbers using fewest clicks or most creative combinations. For example, to form 5072, it might use (50 × 100) + (7 × 10) + (2 × 1) or even (3 × 1000) + (20 × 100) + (72 × 1).
Q1. What is the smallest number of button clicks to make 10,000 using a +1000 button?
(a) 100
(b) 10
(c) 1
(d) 1000
Answer: (b)
Difficulty Level: Easy
Explanation: 10 × 1000 = 10,000 → 10 button clicks.
Q2. Which of the following is not a valid combination to get 5072?
(a) (5 × 1000) + (0 × 100) + (7 × 10) + (2 × 1)
(b) (500 × 10) + (7 × 10) + (2 × 1)
(c) (3 × 1000) + (20 × 100) + (72 × 1)
(d) (507 × 10) + (2 × 1)
Answer: (b)
Difficulty Level: Moderate
Explanation: (500 × 10 = 5000) + 70 + 2 = 5072, but 500 × 10 is not allowed in button logic (no ×10 button, only fixed increment ones).
Q3. How many zeroes does the number “1 crore” have in the Indian number system?
(a) 5
(b) 6
(c) 7
(d) 8
Answer: (c)
Difficulty Level: Easy
Explanation: 1 crore = 1 followed by 7 zeros = 1,00,00,000.
Q4. What is the American system equivalent of 1 crore?
(a) 10 million
(b) 1 billion
(c) 100 thousand
(d) 1 million
Answer: (a)
Difficulty Level: Moderate
Explanation: 1 crore = 10 million in the international system.
We hope the given case study questions for Large Numbers Around Us Class 7 helps you in your learning.
Also check
- Ganita Prakash Class 7 Maths Chapter 8 Working with Fractions Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 7 A Tale of Three Intersecting Lines Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 6 Number Play Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 5 Parallel and Intersecting Lines Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 4 Expressions using Letter-Numbers Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 3 A Peek Beyond the Point Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 2 Arithmetic Expressions Case Study Questions
- Ganita Prakash Class 7 Maths Chapter 1 Large Numbers Around Us Case Study Questions
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Topics from which case study questions may be asked
- Understanding place values
- Estimating large numbers
- Comparing large quantities
Place value helps us understand how big or small a number is.
Frequently Asked Questions (FAQs) on Large Numbers Around Us Case Study Questions
Q1: What is Ganita Prakash for Class 7 Maths?
A1: Ganita Prakash is the newly released NCERT textbook for Class 7 Mathematics, designed as per the National Education Policy (NEP) 2020. It promotes logical reasoning, activity-based learning, and real-life application of maths concepts.
Q2: How can I prepare for Class 7 Maths Case Study questions effectively?
A2: Practice chapterwise questions regularly, focus on understanding concepts, and review explanations for each answer. Solving a variety of moderate to tough level questions is key to mastering this format.
Q3: Are the Case Study questions based on the Ganita Prakash chapters?
A3: Yes, all questions are created strictly based on the topics and themes covered in the Ganita Prakash Class 7 Maths textbook to ensure alignment with the NCERT curriculum.
Q4: Where can I find chapterwise Case Study questions for Class 7 Maths?
A4: You can find them for free on xamcontent.com, organized by chapter and difficulty level, along with answers and explanations.
