Class 5  >  Mathematics for Class 5  >  Practice Questions with Solutions: Operations on Large Numbers

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Document Description: Practice Questions with Solutions: Operations on Large Numbers for Class 5 2022 is part of Mathematics for Class 5 preparation. The notes and questions for Practice Questions with Solutions: Operations on Large Numbers have been prepared according to the Class 5 exam syllabus. Information about Practice Questions with Solutions: Operations on Large Numbers covers topics like and Practice Questions with Solutions: Operations on Large Numbers Example, for Class 5 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Practice Questions with Solutions: Operations on Large Numbers.

Introduction of Practice Questions with Solutions: Operations on Large Numbers in English is available as part of our Mathematics for Class 5 for Class 5 & Practice Questions with Solutions: Operations on Large Numbers in Hindi for Mathematics for Class 5 course. Download more important topics related with notes, lectures and mock test series for Class 5 Exam by signing up for free. Class 5: Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
1 Crore+ students have signed up on EduRev. Have you?

Question 1: In a factory, there are 519 workers. The salary of each worker is ₹ 1,895 per month. What is the total expenditure on the salary of the workers per month?

Salary of 1 worker = ₹ 1,895 per month

Number of workers = 519

Total expenditure on salary of workers per month = ₹1,895 × 519
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Hence, the expenditure on the salary of the workers is ₹ 9,83,505 per month.


Question 2: Estimate the product of 563 and 84.

563 → 600 (Rounding off to hundred’s place)
84 → 80 (Rounding off to ten’s place)
563 × 84 → 600 × 80 i.e., 48,000.
Estimated product is 48,000.
To find the estimated quotient, the dividend and the divisor are rounded off to their greatest place and their division gives the estimated quotient.


Question 3: Add 4,34,20,911; 46,35,194 and 5,61,321.

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Hence, 4,34,20,911 + 46,35,194 + 5,61,321 = 4,86,17,426


Question 4: Find the difference between 5,41,72,384 and 60,00,32,107.

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Thus, the difference between 5,41,72,384 and 60,00,32,107 is 54,58,59,723


Question 5: In 2012, a factory produced 50,39,854 bulbs and in 2013, it produced 47,80,362 bulbs. Find the total number of bulbs produced by the factory in these two years.

Number of bulbs produced by the factory in 2012 = 50,39,854
Number of bulbs produced by the factory in 2013 = 47,80,362
Total number of bulbs produced = 50,39,854 + 47,80,362
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5


Question 6: 

(a) Estimate the difference 3,587 – 1,329
(i) to the nearest tens (ii) to the nearest hundreds
(b) Which of them is closer to the actual difference?

(a)
(i) Rounding off to nearest 10, we have
3,587 → 3,590      [7 > 5 ⇒ 7 → 10 and 87 → 90] and 1,329 → 1,330    [9 > 5 ⇒ 9 → 10 and 29 → 30]
Thus, 3,587 – 1,329 → 3,590 – 1,330 = 2,260

(ii) Rounding off to nearest 100, we have

3,587→3,600 [8 > 5 ⇒ 87 → 100 or 587 → 600] and 1329 → 1,300 [2 < 5 ⇒ 29 → 00 or 329 → 300]

3,587 – 1,329 → 3,600 – 1,300 = 2,300

(b) Actual difference = 3,587 – 1,329 = 2,258.

The first approximation (to the nearest 10) 2,260 is closer to the actual difference

which is 2,258.


Question 7: 50,02,519 students appeared for the Board Examination. Out of them, 32,50,874 were boys. How many girls appeared for the examination?

Total number of students appeared = 50,02,519

Number of boys = 32,50,874

Number of girls = 50,02,519 – 32,50,874
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Hence, 17,51,645 girls appeared for the examination.

Question 8: 155 matchboxes are packed in a carton. How many cartons will be needed to pack 3,16,665 matchboxes?

Number of matchboxes packed in 1 carton = 155
Total number of matchboxes to be packed = 3,16,665
Number of cartons needed = 3,16,665 ÷  155
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Hence, 2,043 cartons are needed.


Question 9: A packet contains 1,215 nails. How many nails are there in 2,715 packets?

Nails in 1 packet = 1,215

Number of packets = 2,715

Total number of nails = 1,215 × 2,715

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Hence, the required number of nails are 32,98,725.


Question 10: Divide 4,63,806 by 42.

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Thus, 4,63,806 ÷ 42 = 11,043.


Question 11: Estimate the sum 3,660 + 7,948 to the nearest tens and verify its closeness to the actual sum.

On estimating to nearest tens, we have :
3,660 → 3,660    [0 < 5 ⇒ 0 → 0]
7,948 → 7,950   [8 > 5 ⇒ 8 → 10 or 48 → 50]

3,660 + 7,948 → 3,660 + 7,950 = 11,610.
Estimated sum = 11,610
Actual sum = 3,660 + 7,948 = 11,608


Question 12: Multiply 13,578 by 329

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Since, 329 = 300 + 20 + 9, we multiply 13,578 by 9, 20 and 300 respectively. Finally,
we add the results to get the required product.


Question 13: Add 25,13,071 and 43,76,82

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Hence, 25,13,071 + 43,76,825 = 68,89,896.


Question 14: What must be added to 51,35,94,612 to get 85,39,26,140?

Sum of two numbers = 85,39,26,140

One number = 51,35,94,612
The other number = 85,39,26,140 – 51,35,94,612

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Hence, the required number = 34,03,31,528.


Question 15: In a city, there are 2,35,01,898 men, 1,56,70,314 women and 51,29,417 children. What is the total population of the city?

Number of men = 2,35,01,898
Number of women = 1,56,70,314
Number of children = 51,29,417
So, total population = 2,35,01,898 + 1,56,70,314 + 51,29,417
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Hence, the total population of the city is 4,43,01,629.


Question 16: The cost of 62 computers is ₹ 14,06,346. Find the cost of 1 computer.

Cost of 62 computers = ₹ 14,06,346.

Cost of 1 computer = ₹ 14,06,346 ÷  62

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Hence, the cost of 1 computer is ₹ 22,683.


Question 17: Subtract 4,32,70,156 from 8,46,93,587.

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Thus, 8,46,93,587 – 4,32,70,156 = 4,14,23,431.


Question 18: Estimate the quotient for 4,683 ÷ 172.

Here 4,683 is rounded to 5,000 (nearest 1,000)
172 is rounded to 200 (nearest 100)
5,000 ÷ 200 gives a quotient = 25
Estimated quotient = 25.


Question 19: Multiply 4,295 by 1,236

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5


Question 20: The population of a city is 8,05,03,624. There are 3,53,72,460 men and 3,00,04,738 women. The rest of them are children. Find the number of children in the city.

Number of men = 3,53,72,460
Number of women = 3,00,04,738
Total number of men and women in the city = 3,53,72,460 + 3,00,04,738.
= 6,53,77,198.
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Total population of the city = 8,05,03,624
Number of children in the city = 8,05,03,624 – 6,53,77,198
Hence, the number of children in the city is 1,51,26,426.

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5


Question 21: Estimate the above sum
(a) to the nearest 100
(b) to the nearest 1,000.
Which estimation is the closest to the actual sum?

(a) Rounding off to nearest 100, we have
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Thus, 3,660 + 7,948 → 3,700 + 7,900

i.e., 3,660 + 7,948 → 3,700 + 7,900 = 11,600.

(b) Rounding off the same numbers to nearest 1,000, we have
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
3,660 + 7,948 → 4,000 + 8,000 = 12,000
Approximation to nearest 10 gives the sum as 11,610.
Approximation to nearest 100 gives the sum as 11,600.
Approximation to nearest 1,000 gives the sum as 12,000.

Out of the three sums 11,610, 11,600 and 12,000, we find that the first approximation ( to the nearest 10) is the closest to the actual sum, which is 11,608.


Question 22: Divide 59,41,025 by 139 and check the answer.

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5
Hence, quotient = 42,741, remainder = 26.
check : Dividend = quotient × divisor + remainder
Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

Hence, the division is correct.

The document Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5 is a part of the Class 5 Course Mathematics for Class 5.
All you need of Class 5 at this link: Class 5

Related Searches

ppt

,

pdf

,

mock tests for examination

,

Free

,

Viva Questions

,

Objective type Questions

,

past year papers

,

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

,

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

,

shortcuts and tricks

,

Sample Paper

,

Semester Notes

,

study material

,

Important questions

,

Exam

,

Practice Questions with Solutions: Operations on Large Numbers Notes | Study Mathematics for Class 5 - Class 5

,

Summary

,

video lectures

,

Previous Year Questions with Solutions

,

practice quizzes

,

MCQs

,

Extra Questions

;