## Chapter 3 – Addition and Subtraction

## Problem Set 7

**Add :**

**(1) 40722 + 13819****Ans:**

1 1

** 4 0 7 2 2**

**+ 1 3 8 1 9**

** 5 4 5 4 1**

**(2) 56427 + 10648****Ans:**

1 1

** 5 6 4 2 7**

**+ 1 0 6 4 8**

** 6 7 0 7 5**

**(3) 64027 + 28409****Ans:**

1 1

** 6 4 0 2 7**

**+ 2 8 4 0 9**

** 9 2 4 3 6**

**(4) 33216 + 28540**

**Ans:**

1

** 3 3 2 1 6**

**+ 2 8 5 4 0**

** 6 1 7 5 6**

## Problem Set 8

**Add :**

**(1) 42,311 + 65,36,624 Ans:**

** 4 2 3 1 1**

**+ 6 5 3 6 6 2 4**

** 6 5 7 8 9 3 5**

**(2) 3,17,529 + 8,04,613**

**Ans:**

1 1 1

** 3 1 7 5 2 9 **

**+ 8 0 4 6 1 3**

** 1 1 2 2 1 4 2**

**(3) 12,42,746 + 4,83,748**

**Ans:**

1 1 1

** 1 2 4 2 7 4 6 **

**+ 4 8 3 7 4 8**

** 1 7 2 6 4 9 4**

**(4) 24,12,636 + 23,19,058**

**Ans:**

1 1

** 2 4 1 2 6 3 6 **

**+ 2 3 1 9 0 5 8**

** 4 3 7 1 6 9 4**

**(5) 2,654 + 71,209 + 5,03,789 **

**Ans:**

1 1 2

** 2 6 5 4 **

**+ 7 1 2 0 9 **

**+ 5 0 3 7 8 9**

** 5 7 7 6 5 2**

**(6) 29 + 726 + 51,36,274**

**Ans:**

1 1 1

** 2 9 **

**+ 7 2 6 **

**+ 5 1 3 6 2 7 4**

** 5 1 3 7 0 2 9**

**(7) 14,02,649 + 524 + 28,13,749 Ans:**

** 1 4 0 2 6 4 9 **

**+ 5 2 4 **

**+ 2 8 1 3 7 4 9**

** 4 2 1 6 9 2 2 **

**(8) 23,45,678 + 9,87,654Ans:**

1 1 1 1 1 1

** 2 3 4 5 6 7 8 **

**+ 9 8 7 6 5 4**

** 3 3 3 3 3 3 2**

**(9) 22 + 6,047 + 3,84,527 Ans:**

1 1

** 2 2 **

**+ 6 0 4 7 **

**+ 3 8 4 5 2 7**

** 3 9 0 5 9 6**

**(10) 2,345 + 65,432 + 76,54,369Ans:**

1 1 1 1 1

** 2 3 4 5 **

**+ 6 5 4 3 2 **

**+ 7 6 5 4 3 6 9**

** 7 7 2 2 1 4 6**

## Problem Set 9

**Solve the following problems.**

**1. In a certain election, 13,47,048 women and 14,29,638 men cast their votes. How many votes were polled altogether?****Ans:**

Votes cast by women – 13,47,048

Votes cast by men – 14,29,638

Total votes polled ?

1 1

**1 3 4 7 0 4 8**

**+ 1 4 2 9 6 3 8**

** 2 7 7 6 6 8 6**

Total 2776686 votes got polled.

**2. What will be the sum of the smallest and the largest six-digit numbers?****Ans:**

Smallest six-digit number – 100000

Largest six-digit numbers – 999999

Sum of the two numbers ?

** 9 9 9 9 9 9**

**+ 1 0 0 0 0 0**

** 1 0 9 9 9 9 9**

The sum of the smallest and the largest six-digit numbers is 1099999.

**3. If Surekhatai bought a tractor for ₹ 8,07,957 and a thresher for ₹ 32,609, how much money did she spend altogether?****Ans:**

Price of tractor – ₹ 8,07,957

price of thresher – ₹ 32,609

Total money spent ?

1 1 1

**8 0 7 9 5 7**

**+ 3 2 6 0 9**

** 8 4 0 5 6 6**

She spend **₹**8,40,566 altogether

**4. A textile mill produced 17,24,938 metres of cloth last year and 23,47,056 metres this year. What was the total production for the two years?****Ans:**

Cloth produced last year – 174938 m

Cloth produced this year – 2347056 m

Total production of cloth ?

1 1 1

** 1 7 2 4 9 3 8**

** + 2 3 4 7 0 5 6**** 4 0 7 1 9 9 4**

The total production for the two years was 4071994 m.

**5. If the Government gave ₹ 34,62,950 worth of computers and ₹ 3,26,578 worth of TV sets to the schools, what is the total amount it spent on this equipment?****Ans:**

Amount spent for computers – 3462940

Amount spent for TV sets – 326578

Total amount spent ?

1 1

** 3 4 6 2 9 4 0**

**+ 3 2 6 5 7 8**

** 3 7 8 9 5 1 8**

The total amount it spent on this equipment is ₹ 37,89,518.

## Problem Set 11

**Subtract :**

**(1) 8,57,513 – 4,82,256 Ans:**

** 8 5 7 5 1 3**

**– 4 8 2 2 5 6 **

** 3 7 5 2 5 7**

**(2) 13,17,519 – 10,07,423 Ans:**

** 1 3 1 7 5 1 9**

**– 1 0 0 7 4 2 3**

** 0 3 1 0 0 9 6**

**(3) 68,34,501 – 23,57,823Ans:**

** 6 8 3 4 5 0 1**

**– 2 3 5 7 8 2 3**

** 4 4 7 6 6 7 8**

**(4) 45,43,827 – 12,05,938 Ans:**

** 4 5 4 3 8 2 7**

**– 1 2 0 5 9 3 8**

** 3 3 3 7 8 8 9**

**(5) 70,12,345 – 28,64,547 Ans:**

** 7 0 1 2 3 4 5**

**– 2 8 6 4 5 4 7**

** 4 1 4 7 7 9 8**

**(6) 38,01,213 – 37,54,648Ans:**

** 3 8 0 1 2 1 3**

**– 3 7 5 4 6 4 8 **

** 0 0 4 6 5 6 5**

## Problem Set 12

**1. Prathamesh wants to buy a laptop worth 27,450 rupees. He has 22,975 rupees. What is the amount he still needs to be able to buy the laptop?Ans:**

Price of Laptop – 27,450 rupees

Money with Prathamesh – 22,975 rupees

Money still needed ?

** 2 7 4 5 0**

**– 2 2 9 7 5 **

** 0 4 4 7 5**

Prathamesh still needs 4475 rupees to buy the laptop.

**2. A company produced 44,730 scooters in a certain year and 43,150 in the next. How many more scooters did they produce in the previous year?Ans:**

Scooters manufactured in a certain year – 44730

Scooters manufactured the next year – 43150

More scooters ?

** **

** 4 4 7 3 0**

**– 4 3 1 5 0**

** 0 1 5 8 0**

The company manufactured 1,580 more scooters in the previous year.

**3. In a certain city, the number of men is 16,37,856 and the number of women is 16,52,978. By how many does the number of women exceed the number of men?Ans:**

The number of women – 1652978

The number of men – 1637856

The number of women more than men ?

**1 6 5 2 9 7 8**

**– 1 6 3 7 8 5 6**

** 0 0 1 5 1 2 2**

The number of women exceeds the number of men by 15,122.

**4. An organization decided to collect 25,00,000 rupees for a certain project. They collected 26,57,340 through donations and other kinds of aid. By how much did they exceed their target?Ans:**

Received from donation, etc. – ₹ 2657340

Target – ₹ 2500000

Amount more than the target ?

** **

** 2 6 5 7 3 4 0**

**– 2 5 0 0 0 0 0**

** 0 1 5 7 3 4 0**

The organization exceeded the target by 1,57,340.

**5. Use the numbers 23,849 and 27,056 to make a subtraction problem. Solve the problem.Ans:**

Problem: In an election, Bhalerao got 27,056 votes and Chandrakant got 23,849 votes. By how much votes did Bhalerao win the election?

Bhalerao got 27056 votes

Chandrakant got 23849 votes

Bhalerao got ? more votes

** **

** 2 7 0 5 6**

**– 2 3 8 4 9**

** 0 3 2 0 7**

Bhalerao won the election by 3,207 votes.

## Problem Set 13

**1. The Forest Department planted 23,078 trees of khair, 19,476 of behada besides trees of several other kinds. If the Department planted 50,000 trees altogether, how many trees were neither of khair nor of behada?Ans:**

Other kinds of saplings are 7,446.

**2. A city has a population of 37,04,926. If this includes 11,24,069 men and 10,96,478 women, what is the number of children in the city?Ans:**

The number of children is 14,84,379.

**3. The management of a certain factory had 25,40,600 rupees in the labour welfare fund. From this fund, 12,37,865 rupees were used for medical expenses, 8,42,317 rupees were spent on the education of the workers’ children and the remaining was put aside for a canteen. How much money was put aside for the canteen?Ans:**

**This balance fund was put aside for the canteen.**

4,60,418 was put aside for the canteen.

**4. For a three-day cricket match, 13,608 tickets were sold on the first day and 8,955 on the second day. If, altogether, 36,563 tickets were sold in three days, how many were sold on the third day?Ans:**

14,000 tickets were sold on the third day.