Worksheet for Class 7 Maths Chapter 1 Large number around us with Answers
Given below is the Worksheet for Class 6 Maths Knowing our Numbers with Answers
(a) Multiple choice questions
(b) Fill in the blank's
(c) True and False
(d) Long answer questions
(e) Calculation problems
(f) Match the column
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Multiple Choice Questions
Question 1. $3 \times 10000 + 0 \times 1000 + 8 \times 100 + 0 \times 10 + 7 \times 1$ is same as
(A) 30087
(B) 30807
(C) 3807
(D) 3087 Question 2. 1 billion is equal to
(A) 100 millions
(B) 10 millions
(C) 1000 lakhs
(D) 10000 lakhs Question 3. 5 million is equal to how many lakhs?
(A) 500 lakh
(B) 5 lakh
(C) 50 lakh
(D) 25 lakh
Answer 1-3
1. (B)
2. (D)
3. (C)
Fill in the blanks
Question 4. In Indian System of Numeration, the number 61711682 is written, using commas, as __________. Question 5. The smallest 4 digit number with different digits is __________ .
Answer 4-5
4. 6,17,11,682
5. 1023
True or false:
Question 6. The number 58963 rounded off to nearest hundred is 58900. Question 7. 9,876,501,234 -> 9 billion 876 million 501 thousand 234 (in the American system)
Answer 6-7
6. False
7. True
Solve following Problems
Question 8. Population of Agra and Aligarh districts in the year 2001 was 36,20, 436 and 29,92,286, respectively. What was the total population of the two districts in that year?
Answer
In 2001 Population of Agra = 3620436 ; Population of Aligarh = 2992286 ; Total population = 3620436 + 2992286 = 66,12,722
Question 9. In one state, the number of bicycles sold in the year 2002-2003 was 7,43,000. In the year 2003-2004, the number of bicycles sold was 8,00,100. In which year were more bicycles sold? and how many more?
Answer
57,100 more bicycles were sold in the year 2003-2004
Question 10. The town newspaper is published every day. One copy has 12 pages. Everyday 11,980 copies are printed. How many total pages are printed everyday?
Answer
Everyday 1,43,760 pages are printed.
Question 11. The number of sheets of paper available for making notebooks is 75,000. Each sheet makes 8 pages of a notebook. Each notebook contains 200 pages. How many notebooks can be made from the paper available?
Answer
The answer is 3,000 notebooks
Question 12. Insert comas in appropriate place and write following numbers according to Indian and international system.
(a)1900218
(b)50500401
(c)206008010
Answer
a. 1900218
Indian system : 19,00,218
Nineteen Lakhs two hundreds and eighteen
International System : 1,900,218
1 Million Nine hundred thousand two hundreds and eighteen
b. 50500401
Indian system : 5,05,00,401
Five crores Five lakhs four hundred and one
International System : 50,500,401
Fifty Million five hundred thousand four hundred and one
c. 206008010
Indian system : 20,60,08,010
Twenty crores Sixty lakhs Eight thousand and ten
International System : 206,008,010
Two hundred and six Million Eight thousand and ten
Question 13. Fill in the blanks:
(a) 1 crore = _______ millions
(b) 10 lakh = _______ten thousands
(c) ten million = _______lakh
(d) one hundred thousand = ______ lakh
Answer
a. 10
b. 100
c. 100
d. 1
Question 14. Write the numbers for the following number names and insert comas at proper places.
(a) Five lakh one hundred twenty-one
(b) Eighty crore six thousand fifty-three
(c) Ninety-three lakh eight thousand seven
(d) forty-eight million five thousand two hundred five
(e) Eight million seven thousand five
Answer
(a) Five lakh one hundred twenty-one
5,00,121
(b) Eighty crore six thousand fifty-three
80,00,06,053
(c) Ninety-three lakh eight thousand seven
93,08,007
(d) forty-eight million five thousand two hundred five
48,005,205
(e) Eight million seven thousand five
8,007,005
Question 15. Which of these is the greatest number?
(a) 38926 ones
(b) 4905 tens
(c) 3450 hundreds
(d) 210 thousands
Answer
c
Question 16. Arrange the following numbers in descending order:
(a) 12098, 12980, 12890, 12089
(b) 2008909, 299088, 2000899, 298099
Answer
a. 12980 > 12890 > 12098 > 12089
b. 2008909 > 2000899 > 299088 > 298099
Question 17. Write the numeral and expanded form for the following number name:
(a) Five million two hundred thousand and fifty
(b) Two crore two lakh two thousand two hundred and two
(c) Ten crore twenty thousand eight
(d) Eighty-five lakh six hundred twelve
(e) Thirty-Eight million one hundred thousand and Eight
Answer
(a) Five million two hundred thousand and fifty
5,200,050
$5,200,050 = 5 \times 1,000,000 + 2 \times 100,000 + 5 \times 10$
(b) Two crore two lakh two thousand two hundred and two
2,02,02,201
$2,02,02,201 = 2 \times 1,00,00,000 + 2 \times 1,00,000 + 2 \times 100 + 1$
(c) Ten crore twenty thousand eight
$10,00,20,008 =1 \times 10,00,00,000 + 2 \times 10,000 + 8$
(d) Eighty-five lakh six hundred twelve
$85,00,612 = 8 \times 10,00,000 + 5 \times 1,00,000 + 6 \times 100 + 1 \times 10 + 2$
(e) Thirty-Eight million one hundred thousand and Eight
$38,100,008= 3 \times 10,000,000 + 8 \times 1,000,000 + 1 \times 100,000 + 8 $
Question 18. Calculate these products quickly.
(a) 125 x 88
(b) 250 X 72
Answer
(a) 125 x 88 = (1000/8) x 88=1000 x (88/8) = 11 x 1000=11000
(b) 250 X 72 = (1000/4) x 72=1000 x (72/4) = 18 x 1000=18000
Question 19.
(i) The product of two 5 digit number will be of ___________ or ____________ digits
(ii) The product of 8 digit number with 5 digit number will be of ___________ or ____________ digits
Answer
The maximum digits in their product will be the sum of the digits of the two numbers.
The minimum digit in their product will be one less than their sum.
So answer are
(i) 9 or 10 digit numbers
(ii) 12 or 13 digit numbers
Question 20.
The number 10,30,285 in words is ten lakhs thirty thousand two hundred eighty-five, which has 42 letters. Give a 7-digit number name which has the maximum number of letters.
Answer
Ans: One such number is 77,77,777, which has 60 letters.
