Let's solve each part of the problem step by step.
---
Problem a:
A bat costs Rs. 135. Sonu has Rs. 75. How much more money does he need to buy the bat?
#### Solution:
1. The cost of the bat is
Rs. 135.
2. Sonu has
Rs. 75.
3. To find out how much more money Sonu needs, we subtract the amount he has from the cost of the bat:
\[
\text{Money needed} = \text{Cost of the bat} - \text{Amount Sonu has}
\]
\[
\text{Money needed} = 135 - 75 = 60
\]
#### Answer:
Sonu needs
Rs. 60 more to buy the bat.
---
Problem b:
Sara bought a box of crayons for Rs. 25.50 and a drawing book for Rs. 47.25. What is the total amount that she has to pay?
#### Solution:
1. The cost of the box of crayons is
Rs. 25.50.
2. The cost of the drawing book is
Rs. 47.25.
3. To find the total amount Sara has to pay, we add the cost of the crayons and the drawing book:
\[
\text{Total amount} = \text{Cost of crayons} + \text{Cost of drawing book}
\]
\[
\text{Total amount} = 25.50 + 47.25 = 72.75
\]
#### Answer:
The total amount Sara has to pay is
Rs. 72.75.
---
Problem c:
A box of mangoes costs Rs. 460. Radha paid Rs. 500 to the shopkeeper. How much money will she get back?
#### Solution:
1. The cost of the box of mangoes is
Rs. 460.
2. Radha paid
Rs. 500.
3. To find out how much money Radha will get back, we subtract the cost of the mangoes from the amount she paid:
\[
\text{Change} = \text{Amount paid} - \text{Cost of mangoes}
\]
\[
\text{Change} = 500 - 460 = 40
\]
#### Answer:
Radha will get back
Rs. 40.
---
Final Answers:
\[
\boxed{60, 72.75, 40}
\]
Parent Tip: Review the logic above to help your child master the concept of 2nd grade money word problems worksheet.