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 + 9,87,654
Ans:
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 + 76,54,369
Ans:
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 – 23,57,823
Ans:
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 – 37,54,648
Ans:
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.