Class 7 Mathematics — Chapter 1: LARGE NUMBERS AROUND US
Free AI tutor + NCERT notes for Chapter 1: LARGE NUMBERS AROUND US. 6 topics covered. Ask any question by voice or text in Hindi or English.
What you'll learn
- ▸Conceptualizing Large Numbers
- ▸Indian Place Value System
- ▸Reading and Writing Large Numbers
- ▸Number Composition and Expanded Form
- ▸Problem Solving using Large Numbers
- ▸Comparing Indian and International Number Systems
Chapter Summary
--- PAGE 1 --- 1 LARGE NUMBERS AROUND US 0774CH01 1.1 A Lakh Varieties! Eshwarappa is a farmer in Chintamani, a town in Karnataka. He visits the market regularly to buy seeds for his rice field. During one such visit he overheard a conversation between Ramanna and Lakshmamma. Ramanna said, “Earlier our country had about a lakh varieties of rice. Farmers used to preserve different varieties of seeds and use them to grow rice. Now, we only have a handful of varieties. Also, farmers have to come to the market to buy seeds”. Lakshmamma said, “There is a seed bank near my house. So far, they have collected about a hundred indigenous varieties of rice seeds from different places. You can also buy seeds from there.” You may have heard the word 'lakh' before. Do you know how big one lakh is? Let us find out. Eshwarappa shared this incident with his daughter Roxie and son Estu. Estu was surprised to know that there …
Practice Questions from this Chapter
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- Compare a lakh and a million. Get Solution →
- Visualize a trillion of anything. Get Solution →
- Explain our number system evolution. Get Solution →
- What is the smallest 6-digit number? Get Solution →
- In the Indian system of numeration, how is the number 1,00,000 read? Get Solution →
- According to the chapter, a crore is equal to how many lakhs? Get Solution →
- What is the number 1,00,00,000 called in the Indian system? Get Solution →
- In the Indian place value system, what is the grouping pattern for placing commas, starting from right to left? Get Solution →
Did you know?
- 💡 Our Milky Way galaxy contains up to 400 billion stars.
- 💡 An adult human body is made of approximately 37 trillion cells.
- 💡 A person living 80 years experiences over 2.5 billion seconds.
- 💡 Earth has more grains of sand than stars in the observable universe.
- 💡 It would take almost 32,000 years to count to a trillion aloud.
Frequently Asked Questions
How many topics are covered in this chapter?
This chapter covers 6 key topics: Conceptualizing Large Numbers, Indian Place Value System, Reading and Writing Large Numbers, Number Composition and Expanded Form, Problem Solving using Large Numbers, and more. The BrainWeave AI tutor explains each one with examples.
Is Chapter 1: LARGE NUMBERS AROUND US important for board exams?
Class 7 is a foundation year. Mastering this chapter now will help you build strong fundamentals for the higher classes.
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