AmbifulWorksheets
Practice that never repeats
CBSE · Class 7 · Mathematics

Large Numbers Around Us

Standard difficulty · 20 questions · 40 marks

Name: Date: Score: ____ / 40

Show your working for Sections B and C. Answers are on the last page — try every question first!

Section A — Choose the correct answer8 × 1 = 8 marks
1.
In 15,97,48,326, the digit 5 is in which place?
  1. ones
  2. thousands
  3. ten thousands
  4. crores
2.
14 lakh equals how many thousand?
  1. 14,000 thousand
  2. 140 thousand
  3. 1,400 thousand
  4. 14 thousand
3.
1 lakh equals:
  1. 1 million
  2. 10 thousand
  3. 100 thousand
  4. 1000 thousand
4.
34 million equals:
  1. 340 lakh
  2. 34 crore
  3. 34 lakh
  4. 3,400 lakh
5.
Which is the greatest: 6,98,72,553; 7,01,32,553; 7,19,32,553; 6,99,32,553?
  1. 6,98,72,553
  2. 6,99,32,553
  3. 7,19,32,553
  4. 7,01,32,553
6.
4,97,93,812 rounded to the nearest lakh is:
  1. 4,97,00,000
  2. 4,98,00,000
  3. 4,99,00,000
  4. 4,97,90,000
7.
4,87,654 rounded to the nearest lakh is:
  1. 5,00,000
  2. 4,00,000
  3. 4,90,000
  4. 4,88,000
8.
16 lakh × 56 hundred equals:
  1. 8,96,00,00,000
  2. 89,60,00,000
  3. 89,60,00,00,000
  4. 8,96,00,000
Section B — Short answer8 × 2 = 16 marks
9.
Write 916751036 with commas in the Indian system and in the international system.
10.
Write 54,00,61,000 in words, the Indian way.
11.
Find the difference between 8,72,44,482 and 3,11,35,217.
12.
Estimate 31,64,241 + 18,20,199 by rounding each to the nearest lakh. Then find the exact sum.
13.
How many million make 92 crore? How many lakh?
14.
68,000 people each pay Rs 239 for a ticket. How much is collected? Write it in Indian and international form.
15.
Using each of the digits 1, 6, 7, 9, 3, 8, 0 once, write the largest and smallest 7-digit numbers, with Indian commas.
16.
Write 643 crore as a number, with Indian commas. How many zeros does it end with?
Section C — Word problems4 × 4 = 16 marks
17.
The population of City Y is about 79,93,855 and of City Q about 65,77,095. Which city has more people, and by about how many lakh (rounded to the nearest lakh)?
18.
A state gives Rs 11,68,00,000 to be shared equally among 16 villages. How much does each village get, in rupees and in lakh?
19.
A factory makes 531 biscuit packets an hour, works 16 hours a day, for 177 days. How many packets is that? Write the answer in words.
20.
A heart beats about 77 times a minute. About how many times does it beat in a day, and in a year of 365 days? Round the yearly number to the nearest lakh.
AmbifulWorksheets
Practice that never repeats
CBSE · Class 7 · Mathematics

Answer key

Large Numbers Around Us · AW-7M-LNO-2026-V1 · For parents — fold back or tear off before handing the sheet to your child.

QAnswerWorking
1(d) crores5 × 1,00,00,000
2(c) 1,400 thousand1 lakh = 100 thousand: 14 × 100 = 1400
3(c) 100 thousand1,00,000
4(a) 340 lakh1 million = 10 lakh: 34 × 10 = 340 lakh
5(c) 7,19,32,553compare the digits from the left
6(b) 4,98,00,000the ten-thousands digit is 9
7(a) 5,00,000the ten-thousands digit is 8
8(a) 8,96,00,00,00016 × 56 = 896, then 7 zeros
9Indian 91,67,51,036; international 916,751,036Indian: 3 digits, then groups of 2; international: groups of 3
10fifty-four crore sixty-one thousandcrore, lakh, thousand, then the rest
115,61,09,2658,72,44,482 − 3,11,35,217 = 5,61,09,265
12about 50,00,000; exactly 49,84,44032,00,000 + 18,00,000 = 50,00,000
13920 million; 9,200 lakh1 crore = 10 million = 100 lakh
14Rs 1,62,52,000 (international Rs 16,252,000)68000 × 239 = 16252000
15largest 98,76,310, smallest 10,36,789a 7-digit number cannot start with 0
166,43,00,00,000; 7 zeros1 crore = 1,00,00,000
17City Y, by about 14 lakh79,93,855 − 65,77,095 = 14,16,760
18Rs 73,00,000 (73 lakh)11,68,00,000 ÷ 16 = 73,00,000
1915,03,792: fifteen lakh three thousand seven hundred ninety-two531 × 16 × 177 = 15,03,792
201,10,880 a day; about 4,05,00,000 a year77 × 60 × 24 = 1,10,880; × 365 = 4,04,71,200