What is one crore in the Indian number system?

One crore equals 1,00,00,000 (one followed by seven zeroes) in the Indian number system. It equals 100 lakhs or 10 million in the international system. The Indian notation uses commas after hundreds, then every two digits: 1,00,00,000. This is covered in NCERT Class 7 Maths Chapter 1.

TOPIC 2 OF 31

Crore, Estimation and Population Data

🎓 Class 7 Mathematics CBSE Theory Ch 1 — Large Numbers Around Us ⏱ ~35 min

🌐 Language: [gtranslate]

🧠 AI-Powered MCQ Assessment ▲

This MCQ module is based on: Crore, Estimation and Population Data

No. of Questions:

Difficulty Level:

📐 Maths Assessment ▲

This mathematics assessment will be based on: Crore, Estimation and Population Data
Targeting Class 7 level in Number Theory, with Basic difficulty.

Question Type:

Number of Questions:

Upload Additional Content (Optional):

Upload images, PDFs, or Word documents to include their content in assessment generation.

1.3 Of Crores and Crores!

In Part 1, we used a Button Calculator with buttons like +1, +10, +100, ..., +10,00,000. What happens if we press the +10,00,000 button ten times?

📖 Crore Defined

Pressing +10,00,000 ten times on the button calculator gives 1,00,00,000 = One Crore.

1 Crore = 100 Lakhs
1 Crore = 1,00,00,000 (1 followed by 7 zeroes)
The word crore comes from the Sanskrit word koṭi (कोटि)
The word lakh comes from the Sanskrit word lakṣha (लक्ष)

Indian System vs. American (International) System

The same number is written and named differently in the Indian System^? and the International System^?. The key difference lies in how commas are placed:

🇮🇳

Indian System

Commas follow a 3–2–2–2… pattern from right to left.
Groups: Thousands, Lakhs, Crores, Arabs.
Used in India, Nepal, Bhutan, Sri Lanka, Pakistan, Bangladesh, Myanmar, Afghanistan, and Maldives.

🌐

American / International System

Commas follow a 3–3–3–3… pattern from right to left.
Groups: Thousands, Millions, Billions.
Used in the USA and many other countries.

Indian Notation	Indian Name	International Notation	International Name
1,000	One thousand	1,000	One thousand
10,000	Ten thousand	10,000	Ten thousand
1,00,000	One lakh	100,000	Hundred thousand
10,00,000	Ten lakhs	1,000,000	One million
1,00,00,000	One crore	10,000,000	Ten million
10,00,00,000	Ten crores	100,000,000	Hundred million
1,00,00,00,000	One arab (= 100 crores)	1,000,000,000	One billion

💡 Key Observation

1 Lakh = 1 followed by 5 zeroes | 1 Crore = 1 followed by 7 zeroes

A thousand lakhs = 1 crore. A hundred crores = 1 arab. A thousand thousand lakh = how many zeroes? Count: 3 + 3 + 5 = 11 zeroes → That's 100 arabs!

How many zeroes does a thousand lakh have? 1000 = 10³ and 1 lakh = 10⁵, so thousand lakh = 10³ × 10⁵ = 10⁸ → 8 zeroes.
How many zeroes does a hundred thousand have? 100,000 = 10⁵ → 5 zeroes.

Reading a Large Number Both Ways

Consider the number 9876501234. Placing commas reveals its value clearly:

🔢 Number Name Decoder — Indian & International

Type any whole number (up to 10 digits) and see its name in both naming systems instantly.

📝 Figure it Out — Crores & Naming Systems

Q1. Read and write the number names for each number in both Indian and International systems:
(a) 4050678 (b) 48121620 (c) 20022002 (d) 246813579 (e) 345000543 (f) 1020304050

Number	Indian Notation	Indian Name	International Name
40,50,678	40,50,678	Forty lakh fifty thousand six hundred seventy-eight	Four million fifty thousand six hundred seventy-eight
4,81,21,620	4,81,21,620	Four crore eighty-one lakh twenty-one thousand six hundred twenty	Forty-eight million one hundred twenty-one thousand six hundred twenty
2,00,22,002	2,00,22,002	Two crore twenty-two thousand two	Twenty million twenty-two thousand two
24,68,13,579	24,68,13,579	Twenty-four crore sixty-eight lakh thirteen thousand five hundred seventy-nine	Two hundred forty-six million eight hundred thirteen thousand five hundred seventy-nine
34,50,00,543	34,50,00,543	Thirty-four crore fifty lakh five hundred forty-three	Three hundred forty-five million five hundred forty-three
1,02,03,04,050	1,02,03,04,050	One arab two crore three lakh four thousand fifty	One billion twenty million three hundred four thousand fifty

Q2. Write in Indian place value notation (with commas):
(a) One crore one lakh one thousand ten
(b) One billion one million one thousand one
(c) Ten crore twenty lakh thirty thousand forty
(d) Nine billion eighty million seven hundred thousand six hundred

(a) 1 crore = 1,00,00,000; 1 lakh = 1,00,000; 1 thousand = 1,000; ten = 10
Total = 1,00,00,000 + 1,00,000 + 1,000 + 10 = 1,01,01,010

(b) 1 billion = 1,00,00,00,000 (= 100 crore); 1 million = 10 lakhs = 10,00,000; 1 thousand = 1,000; one = 1
Total = 1,00,10,01,001

(c) 10 crore = 10,00,00,000; 20 lakh = 20,00,000; 30 thousand = 30,000; forty = 40
Total = 10,20,30,040

(d) 9 billion = 9,00,00,00,000; 80 million = 8,00,00,000; 700 thousand = 7,00,000; 600 = 600
Total = 9,08,07,00,600

Q3. Compare — write <, > or =:
(a) 30 thousand ____ 3 lakhs
(b) 500 lakhs ____ 5 million
(c) 800 thousand ____ 8 million
(d) 640 crore ____ 60 billion

(a) 30,000 vs 3,00,000 → 30 thousand < 3 lakhs → <

(b) 500 lakhs = 5,00,00,000; 5 million = 50,00,000. So 500 lakhs > 5 million → >

(c) 800 thousand = 8,00,000; 8 million = 80,00,000. So 800 thousand < 8 million → <

(d) 640 crore = 6,40,00,00,000; 60 billion = 60,00,00,00,000. So 640 crore < 60 billion → <

1.4 Exact and Approximate Values

Have you ever noticed how newspapers report numbers? Consider this conversation:

According to the 2011 census, the population of Chintamani town is 76,068. Saying the population is about 75,000 gives a quick sense of the town's size — and that approximation is often sufficient.

Rounding Up vs. Rounding Down

⬆️ Rounding Up

The approximated number is more than the actual number.

Example: A school has 732 people. The principal orders 750 sweets (rounded up) so nobody is left out.

⬇️ Rounding Down

The approximated number is less than the actual number.

Example: An item costs ₹470. The shopkeeper says it is about ₹450 (rounded down) to sound like a bargain.

🤔 Think and Share

Identify situations where it is appropriate to:

Round up — e.g. when buying enough supplies for everyone.
Round down — e.g. when estimating how much money you will save.
Either is okay — e.g. reporting approximate distances in geography.
Exact numbers are needed — e.g. medicine doses, bank transactions, roll numbers.

Nearest Neighbours of a Large Number

With large numbers, it is useful to find the nearest neighbours^? — i.e., the nearest thousand, nearest lakh, nearest crore, etc.

For example, the five nearest neighbours of 6,72,85,183 are:

Rounded to	Nearest Neighbour	Rule Applied
Nearest Thousand	6,72,85,000	Last 3 digits = 183 < 500 → round down
Nearest Ten Thousand	6,72,90,000	Last 4 digits = 5,183 ≥ 5,000 → round up
Nearest Lakh	6,73,00,000	85,183 ≥ 50,000 → round up
Nearest Ten Lakh	6,70,00,000	2,85,183 < 5,00,000 → round down
Nearest Crore	7,00,00,000	72,85,183 ≥ 50,00,000 → round up

Practice: Write the five nearest neighbours for:
(a) 3,87,69,957 (b) 29,05,32,481
Also: I have a number whose all five nearest neighbours are 5,00,00,000. What could the number be? How many such numbers are there?

(a) 3,87,69,957:

Nearest thousand: last 3 digits 957 ≥ 500 → round up → 3,87,70,000
Nearest ten thousand: 9,957 ≥ 5,000 → round up → 3,87,70,000
Nearest lakh: 69,957 ≥ 50,000 → round up → 3,88,00,000
Nearest ten lakh: 7,69,957 ≥ 5,00,000 → round up → 3,90,00,000
Nearest crore: 87,69,957 ≥ 50,00,000 → round up → 4,00,00,000

(b) 29,05,32,481:

Nearest thousand: 481 < 500 → round down → 29,05,32,000
Nearest ten thousand: 2,481 < 5,000 → round down → 29,05,30,000
Nearest lakh: 32,481 < 50,000 → round down → 29,05,00,000
Nearest ten lakh: 5,32,481 ≥ 5,00,000 → round up → 29,10,00,000
Nearest crore: 9,05,32,481 < 50,00,00,000 ... wait, 9,05,32,481 ≥ 50,00,000? Yes! → round up → 30,00,00,000

All five neighbours = 5,00,00,000:
For nearest crore = 5,00,00,000: number must be between 4,50,00,001 and 5,49,99,999.
For nearest ten lakh = 5,00,00,000: number must be between 4,95,00,001 and 5,04,99,999.
For nearest lakh = 5,00,00,000: number must be between 4,99,50,001 and 5,00,49,999.
For nearest ten thousand = 5,00,00,000: must be between 4,99,95,001 and 5,00,04,999.
For nearest thousand = 5,00,00,000: must be between 4,99,99,501 and 5,00,00,499.
The intersection is: 4,99,99,501 to 5,00,00,499 — that's 999 numbers in total.

📐 Nearest Neighbour Finder

Enter any number to find its nearest thousand, ten-thousand, lakh, ten-lakh, and crore.

Math Talk — Estimation Challenge

🗣️ Math Talk

Roxie and Estu are practising estimation. They evaluate the reasonableness of their estimates before calculating the exact answer.

Math Talk Q1: Estimate and evaluate 4,63,128 + 4,19,682
Roxie: "The sum is near 8,00,000 and is more than 8,00,000."
Estu: "The sum is near 9,00,000 and is less than 9,00,000."

(a) Are these estimates correct? Whose estimate is closer?
(b) Will the sum be greater or less than 8,50,000? Why?
(c) Will the sum be greater or less than 8,83,128? Why?
(d) Find the exact value.

(a) 4,63,128 ≈ 5 lakh; 4,19,682 ≈ 4 lakh → sum ≈ 9 lakh.
Roxie says "near 8 lakh and more" — this is a valid lower estimate but not very close.
Estu says "near 9 lakh and less" — this is closer to the actual answer. Estu's estimate is closer.

(b) 4,63,128 > 4,25,000 and 4,19,682 > 4,25,000. So the sum > 8,50,000. Greater than 8,50,000.

(c) 4,63,128 + 4,19,682 vs 8,83,128. The second number in our sum is 4,19,682 < 4,20,000. So sum < 4,63,128 + 4,20,000 = 8,83,128. Less than 8,83,128.

(d) 4,63,128 + 4,19,682 = 8,82,810.

Math Talk Q2: Estimate and evaluate 14,63,128 − 4,90,020
Roxie: "The difference is near 10,00,000 and is less than 10,00,000."
Estu: "The difference is near 9,00,000 and is more than 9,00,000."

(a) Are these estimates correct? Whose is closer?
(b) Greater or less than 9,50,000? Why?
(c) Greater or less than 9,63,128? Why?
(d) Find the exact value.

(a) 14,63,128 − 4,90,020 ≈ 15 lakh − 5 lakh = 10 lakh.
Roxie: "near 10 lakh, less than 10 lakh" ✔ (since we subtracted a bit less than 5 lakh from slightly less than 15 lakh).
Estu: "near 9 lakh, more than 9 lakh" ✔ (also valid).
Both estimates are in the right range. Roxie's is closer.

(b) 4,90,020 < 5,13,128 → difference > 14,63,128 − 5,13,128 = 9,50,000. Greater than 9,50,000.

(c) 14,63,128 − 4,90,020 vs 9,63,128 → subtract 4,90,020 from 14,63,128. Since 4,90,020 < 5,00,000, the difference is > 9,63,128. Greater than 9,63,128.

(d) 14,63,128 − 4,90,020 = 9,73,108.

Populations of Indian Cities (Census 2011)

Study the populations of India's top 20 cities (as per the 2011 census) and answer the questions below.

Rank	City	Population 2011	Population 2001
1	Mumbai	1,24,42,373	1,19,78,450
2	New Delhi	1,10,07,835	98,79,172
3	Bengaluru	84,25,970	43,01,326
4	Hyderabad	68,09,970	36,37,483
5	Ahmedabad	55,70,585	35,20,085
6	Chennai	46,81,087	43,43,645
7	Kolkata	44,86,679	45,72,876
8	Surat	44,67,797	24,33,835
9	Vadodara	35,52,371	16,90,000
10	Pune	31,15,431	25,38,473
11	Jaipur	30,46,163	23,22,575
12	Lucknow	28,15,601	21,85,927
13	Kanpur	27,67,031	25,51,337
14	Nagpur	24,05,665	20,52,066
15	Indore	19,60,631	14,74,968
16	Thane	18,18,872	12,62,551
17	Bhopal	17,98,218	14,37,354
18	Visakhapatnam	17,28,128	13,45,938
19	Pimpri-Chinchwad	17,27,692	10,12,472
20	Patna	16,84,222	13,66,444

Population Comparison: Top 8 Cities (2001 vs 2011) — in Lakhs

Population Q1. What is your general observation about this data? Share with the class.

Most cities show significant population growth from 2001 to 2011. Cities like Bengaluru, Hyderabad, Surat, and Vadodara nearly doubled in population, indicating rapid urbanisation. Mumbai and New Delhi remain the largest cities by a wide margin. Kolkata is the only city whose population slightly decreased.

Population Q2. Suggest an appropriate title for this table.

Suggested title: "Population of India's 20 Largest Cities — A Decade of Growth (2001–2011)"

Population Q3. What is Pune's population in 2011? By approximately how much has it increased from 2001?

Pune's population in 2011: 31,15,431 ≈ 31 lakh.

In 2001: 25,38,473 ≈ 25 lakh.

Increase ≈ 31 lakh − 25 lakh = approximately 6 lakh (exact: 5,76,958 ≈ 5.8 lakh).

Population Q4. Which city's population increased the most between 2001 and 2011?

Absolute increase (approximate):

Bengaluru: 84 lakh − 43 lakh ≈ 41 lakh increase (largest!)
Delhi: 110 lakh − 99 lakh ≈ 11 lakh increase
Hyderabad: 68 lakh − 36 lakh ≈ 32 lakh increase

Bengaluru had the largest absolute increase in population (~41 lakh).

Population Q5. Are there cities whose population almost doubled? Which are they?

A city's population nearly doubled if 2011 population ≈ 2 × 2001 population:

Bengaluru: 84 lakh in 2011 vs 43 lakh in 2001 → ratio ≈ 2.0 ✔
Surat: 45 lakh vs 24 lakh → ratio ≈ 1.85 ✔ (nearly doubled)
Vadodara: 36 lakh vs 17 lakh → ratio ≈ 2.1 ✔
Hyderabad: 68 lakh vs 36 lakh → ratio ≈ 1.9 ✔
Pimpri-Chinchwad: 17 lakh vs 10 lakh → ratio ≈ 1.7 ✔

Population Q6. By what number should we multiply Patna's population to get a number close to Mumbai's?

Patna 2011: ≈ 17 lakh | Mumbai 2011: ≈ 124 lakh

Ratio ≈ 124 ÷ 17 ≈ 7.3

So multiplying Patna's population by approximately 7 gives a number close to Mumbai's population.
Check: 17 × 7 = 119 lakh ≈ 1.19 crore (close to 1.24 crore). ✔

🏙️ Activity — City Population Estimator

L4 Analyse

Use the population table to practise estimation and comparison.

Pick any three cities from the table (ranks 5–20).
Round each city's 2011 population to the nearest lakh.
Estimate the total population of your three cities combined. Is it more or less than Mumbai's population?
Calculate the exact total and compare with your estimate.
By how many lakhs does the exact total differ from your estimate?

Sample: Ahmedabad + Jaipur + Lucknow

Ahmedabad: 55,70,585 ≈ 56 lakh
Jaipur: 30,46,163 ≈ 30 lakh
Lucknow: 28,15,601 ≈ 28 lakh
Estimated total: 56 + 30 + 28 = 114 lakh
Exact total: 55,70,585 + 30,46,163 + 28,15,601 = 1,14,32,349 ≈ 114 lakh
Difference: Estimate was very close! Mumbai has 1,24,42,373 ≈ 124 lakh. Combined total (114 lakh) is less than Mumbai's population.

🏆

Competency-Based Questions — Crores, Estimation & Population

Context: India's rapid urbanisation is reflected in census data. The 2011 census recorded populations of major cities, and planners use approximation to make decisions about infrastructure, housing, and transport. Large numbers such as crores and arabs are used regularly in government reports, and citizens must be able to interpret these numbers in both Indian and International naming systems.

Q1. In the Indian naming system, which of the following correctly represents "Ten Crore Twenty Lakh Thirty Thousand Forty" in numerals?

L1 Remember

(A) 1,20,30,040
(B) 10,20,30,040
(C) 10,02,03,040
(D) 10,20,03,040

Answer: (B) 10,20,30,040
Ten crore = 10,00,00,000; Twenty lakh = 20,00,000; Thirty thousand = 30,000; Forty = 40. Adding: 10,00,00,000 + 20,00,000 + 30,000 + 40 = 10,20,30,040.

Q2. State True or False (give reason):
(i) 1 million = 10 lakhs (ii) 1 billion = 100 crores (iii) 1 arab = 1 billion

L2 Understand

(i) True. 1 million = 10,00,000 = 10 lakhs. ✔
(ii) True. 1 billion = 1,000,000,000 = 1,00,00,00,000 = 100 crores. ✔
(iii) True. 1 arab = 1,00,00,00,000 = 10⁹ = 1 billion. ✔ All three statements are True.

Q3. A city has a population of 2,34,56,789. A newspaper rounds this to the nearest lakh. What number does it report? Is this "rounding up" or "rounding down"? Justify your answer.

L3 Apply

Nearest lakh: The last 5 digits are 56,789. Since 56,789 ≥ 50,000, we round up.
2,34,56,789 → rounded to nearest lakh = 2,35,00,000.
The newspaper reports 2 crore 35 lakh. This is rounding up, since 2,35,00,000 > 2,34,56,789.

Q4. Bengaluru's population grew from about 43 lakh in 2001 to about 84 lakh in 2011. (a) Express both populations in the International system. (b) By what factor (approximately) did the population grow? (c) If this rate continued, estimate Bengaluru's population in 2021.

L4 Analyse

(a) 43 lakh = 4,300,000 ≈ 4.3 million; 84 lakh = 8,400,000 ≈ 8.4 million.
(b) Growth factor ≈ 84 ÷ 43 ≈ 2 (nearly doubled in 10 years).
(c) Applying the same factor: 2021 population ≈ 84 lakh × 2 = 168 lakh ≈ 1 crore 68 lakh (actual 2021 estimate is about 1.3 crore, showing growth slowed somewhat).

Q5. (HOT) A number's five nearest neighbours (nearest thousand, ten-thousand, lakh, ten-lakh, and crore) are all equal to 6,00,00,000. What is the range of values this number could be? How many whole numbers fall in this range?

L5 Evaluate

For all five roundings to give 6,00,00,000:
• Nearest crore = 6 crore: number is between 5,50,00,000 and 6,49,99,999
• Nearest ten lakh = 6,00,00,000: between 5,95,00,000 and 6,04,99,999
• Nearest lakh = 6,00,00,000: between 5,99,50,000 and 6,00,49,999
• Nearest ten thousand = 6,00,00,000: between 5,99,95,000 and 6,00,04,999
• Nearest thousand = 6,00,00,000: between 5,99,99,500 and 6,00,00,499
Intersection: 5,99,99,500 to 6,00,00,499.
Number of whole numbers = 6,00,00,499 − 5,99,99,500 + 1 = 1000 numbers.

🔬 Assertion–Reason Questions

Choose the correct option:
(A) Both Assertion and Reason are true; Reason is the correct explanation.
(B) Both true; Reason is NOT the correct explanation.
(C) Assertion is true; Reason is false.
(D) Assertion is false; Reason is true.

Assertion (A): The Indian system places commas in a 3–2–2–2 pattern from right to left.
Reason (R): In the Indian system, the first grouping from the right has 3 digits (hundreds, tens, ones) and subsequent groupings each have 2 digits (for lakhs, crores, arabs, etc.).

Answer: (A)

Both statements are correct. The Reason accurately explains why the Indian system uses the 3–2–2 pattern. Example: 1,00,00,000 has 3 digits (000), then 2 digits (00), then 2 digits (00), then 1 (the leading digit).

Assertion (A): 1 crore is equal to 10 million.
Reason (R): 1 million = 10 lakhs, so 10 million = 100 lakhs = 1 crore.

Answer: (A)

Both are correct. 1 crore = 1,00,00,000 = 10,000,000 = 10 million. The Reason correctly derives this: 1 million = 10 lakh → 10 million = 100 lakh = 1 crore. ✔

Assertion (A): When a principal orders 750 sweets for 732 students, she is rounding down.
Reason (R): Rounding down means the approximated number is less than the actual number.

Answer: (D)

The Assertion is false — the principal orders 750 sweets for 732 students, so 750 > 732, which is rounding up. The Reason is true — the definition of rounding down is that the approximated number is less than the actual number.

Frequently Asked Questions

What is one crore and how many zeroes does it have?

One crore is 1,00,00,000 which has seven zeroes. It equals 100 lakhs or 10 million in the international system. In the Indian place value system, it occupies the crores place. NCERT Class 7 Ganita Prakash Chapter 1 introduces crore through real-world examples like country populations.

How do you estimate large numbers by rounding?

To estimate a large number, round it to the nearest convenient place value. For numbers in lakhs, round to the nearest lakh. Look at the digit after the rounding place: if it is 5 or more, round up; if less than 5, round down. NCERT Class 7 Chapter 1 teaches estimation with population data.

What is the difference between Indian and international number systems?

The Indian system groups digits as ones-tens-hundreds, then pairs for thousands-lakhs-crores. The international system groups in threes: ones-thousands-millions-billions. One lakh equals 100 thousand and one crore equals 10 million. Both systems are compared in NCERT Class 7 Maths.

How is population data used to teach large numbers?

NCERT Class 7 Ganita Prakash uses India state population data to make large numbers meaningful. Students read, compare and estimate populations in lakhs and crores, learning place value, comma placement and estimation skills through authentic real-world data instead of abstract numbers.

How do you convert between lakhs and crores?

One crore equals 100 lakhs. To convert lakhs to crores, divide by 100. To convert crores to lakhs, multiply by 100. For example, 350 lakhs equals 3.5 crores and 2 crores equals 200 lakhs. This conversion is practised in NCERT Class 7 Ganita Prakash Chapter 1.

Frequently Asked Questions — Large Numbers Around Us

What is Crore, Estimation and Population Data in NCERT Class 7 Mathematics?

Crore, Estimation and Population Data is a key concept covered in NCERT Class 7 Mathematics, Chapter 1: Large Numbers Around Us. This lesson builds the student's foundation in the chapter by explaining the core ideas with worked examples, definitions, and step-by-step methods aligned to the CBSE curriculum.

How do I solve problems on Crore, Estimation and Population Data step by step?

To solve problems on Crore, Estimation and Population Data, follow the NCERT method: identify the given quantities, choose the relevant formula or theorem, substitute values carefully, and simplify. Class 7 exercises gradually increase in difficulty — start with solved NCERT examples before attempting exercise questions, and always verify your answer by substitution or diagram.

What are the most important formulas for Chapter 1: Large Numbers Around Us?

The essential formulas of Chapter 1 (Large Numbers Around Us) are listed in the chapter summary and highlighted throughout the lesson in formula boxes. Memorise them and practise at least 2–3 problems per formula. CBSE board exams frequently test direct application as well as combined use of multiple formulas from this chapter.

Is Crore, Estimation and Population Data important for the Class 7 board exam?

Crore, Estimation and Population Data is part of the NCERT Class 7 Mathematics syllabus and appears in CBSE board exams. Questions typically include short-answer, long-answer, and competency-based items. Review the NCERT examples, exercise questions, and previous-year board problems on this topic to prepare confidently.

What mistakes should students avoid in Crore, Estimation and Population Data?

Common mistakes in Crore, Estimation and Population Data include skipping steps, misapplying formulas, sign errors, and losing track of units. Write each step clearly, double-check algebraic manipulations, and re-read the question after solving to verify that your answer matches what was asked.

Where can I find more NCERT practice questions on Crore, Estimation and Population Data?

End-of-chapter NCERT exercises for Crore, Estimation and Population Data cover all difficulty levels tested in CBSE exams. After completing them, try the examples again without looking at the solutions, attempt the NCERT Exemplar questions for Chapter 1, and solve at least one previous-year board paper to consolidate your understanding.

AI Tutor

Mathematics Class 7 — Ganita Prakash

Ready

Hi! 👋 I'm Gaura, your AI Tutor for Crore, Estimation and Population Data. Take your time studying the lesson — whenever you have a doubt, just ask me! I'm here to help.