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Worksheet Solutions: The Dairy Farm - 2 | Mathematics (Maths Mela) Class 5 - New NCERT PDF Download

Q1. What is 36 × 7?
(a) 242
(b) 252
(c) 246
(d) 232

Ans: (b) 252

Q2. If one pen costs ₹28, what will be the cost of 15 pens?
(a) ₹320
(b) ₹420
(c) ₹390
(d) ₹280

Ans: (b) ₹420

Q3. 125 × 20 = ?
(a) 2000
(b) 2250
(c) 2500
(d) 3000

Ans: (c) 2500

Q4. A box has 48 chocolates. How many chocolates are there in 25 boxes?
(a) 1000
(b) 1200
(c) 1100
(d) 1250

Ans: (b) 1200

Q5. 1001 × 9 = ?
(a) 9009
(b) 9090
(c) 9910
(d) 9100

Ans: (a) 9009

Q6. If a student reads 45 pages every day, how many pages will he read in 31 days?
(a) 1395
(b) 1385
(c) 1405
(d) 1415

Ans: (a) 1395

Q7. Multiplying by 10, 100, 1000

a) 5 × 10 = _____
b) 30 × 20 = _____
c) 10 × 600 = _____
d) 40 × 10 = _____
e) 25 × 1000 = _____

Sol: Quick trick:

  • Multiplying by 10 → add one zero.

  • Multiplying by 100 → add two zeros.

  • Multiplying by 1000 → add three zeros.

a) 5 × 10 = 50
b) 30 × 20 = 600
c) 10 × 600 = 6000
d) 40 × 10 = 400
e) 25 × 1000 = 25000

Q8. Find the products using the nearest multiple of 10:

1) 7 × 52
Sol: Take 52 = 50 + 2
7 × 52 = 7 × (50 + 2)
= (7 × 50) + (7 × 2)
= 350 + 14 = 364

2) 12 × 28
Sol: Take 28 = 30 – 2
12 × 28 = 12 × (30 – 2)
= (12 × 30) – (12 × 2)
= 360 – 24 = 336

3) 75 × 31
Sol: Take 31 = 30 + 1
75 × 31 = 75 × (30 + 1)
= (75 × 30) + (75 × 1)
= 2250 + 75 = 2325

Q9. Multiply the following 

(a) 347 by 3

Sol: Worksheet Solutions: The Dairy Farm - 2 | Mathematics (Maths Mela) Class 5 - New NCERT

(b) 411 by 31

Sol: Worksheet Solutions: The Dairy Farm - 2 | Mathematics (Maths Mela) Class 5 - New NCERT

(c) 573 by 46

Sol: Worksheet Solutions: The Dairy Farm - 2 | Mathematics (Maths Mela) Class 5 - New NCERT

(d) 123 by 456.

Sol: Worksheet Solutions: The Dairy Farm - 2 | Mathematics (Maths Mela) Class 5 - New NCERT

Q10. Observe and Complete the Pattern:

(a) 2 × 5 = 10
20 × 5 = 100
200 × 5 = ?
2000 × 5 = ?

Sol:

2 × 5 = 10

20 × 5 = 100

200 × 5 = 1000

2000 × 5 = 10,000

Answer: 200 × 5 = 1000, 2000 × 5 = 10,000

(b) 2 × 3 = 6
22 × 3 = 66
222 × 3 = 666
2222 × 3 = ?

Sol:

2 × 3 = 6
22 × 3 = 66
222 × 3 = 666
2222 × 3 = 6666

Answer: 2222 × 3 = 6666

(c) 1 × 1 = 1
11 × 11 = 121
111 × 111 = 12321
1111 × 1111 = ?

Sol: 

1 × 1 = 1
11 × 11 = 121
111 × 111 = 12321
1111 × 1111 = 1234321

Answer: 1111 × 1111 = 1234321

(d) 2 × 2 = 4
22 × 22 = 484
222 × 222 = 49284
2222 × 2222 = ?

Sol: 

2 × 2 = 4
22 × 22 = 484
222 × 222 = 49284
2222 × 2222 = 4937284

Answer: 2222 × 2222 = 4937284

The document Worksheet Solutions: The Dairy Farm - 2 | Mathematics (Maths Mela) Class 5 - New NCERT is a part of the Class 5 Course Mathematics (Maths Mela) Class 5 - New NCERT.
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FAQs on Worksheet Solutions: The Dairy Farm - 2 - Mathematics (Maths Mela) Class 5 - New NCERT

1. What are the primary products obtained from a dairy farm?
Ans. The primary products obtained from a dairy farm include milk, cheese, butter, yogurt, and cream. Milk is the most significant product, and it can be processed into various dairy products that are consumed worldwide.
2. How is milk produced on a dairy farm?
Ans. Milk production on a dairy farm begins with the breeding of dairy cows, which are selected for their milk-producing capabilities. Cows are usually milked twice a day using milking machines or by hand. The milk is then cooled, stored, and transported for processing.
3. What is the importance of dairy farming in agriculture?
Ans. Dairy farming plays a crucial role in agriculture as it provides a steady source of income for farmers, contributes to food security through the supply of dairy products, and supports rural economies. Moreover, dairy farming can also enhance soil fertility through the use of manure as fertilizer.
4. What are the common breeds of dairy cows and their characteristics?
Ans. Common breeds of dairy cows include Holstein, Jersey, Guernsey, and Ayrshire. Holsteins are known for their high milk production, Jerseys are recognized for their rich milk fat content, Guernseys are valued for their high butterfat and protein levels, and Ayrshires are appreciated for their efficiency and adaptability.
5. What measures are taken to ensure the health and welfare of dairy cows?
Ans. To ensure the health and welfare of dairy cows, farmers implement regular veterinary check-ups, provide proper nutrition, maintain clean living conditions, and ensure sufficient space for movement. Additionally, stress management practices, such as gentle handling and social interactions, are crucial for their well-being.
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