Class 4

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 2 Fundamental Operations on Numbers Ex 2.2 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 2 Fundamental Operations on Numbers Ex 2.2

1. Replace each * by correct digit in each of the following :

Question 1.

Solution:

Question 2.

Solution:

Question 3.

Solution:

Question 4.

Solution:

Question 5.

Solution:

Question 6.

Solution:

Question 7.

Solution:

Question 8.

Solution:

2. Solve the following:

Question 1.
48 – 12 + 18
Solution:

Question 2.
86 – 35 – 12
Solution:

Question 3.
637 – 452 + 315
Solution:

Question 4.
637 + 315 – 452
Solution:

Question 5.
1837 + 3043 – 413
Solution:

Question 6.
937 – 413 + 3043
Solution:

Question 7.
1003 – 417 – 284
Solution:

Question 8.
9419 – 4419 + 2105
Solution:

Question 9.
2419 + 5005 – 4419
Solution:

Question 10.
2294 + 1828 – 1374.
Solution:

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 2 Fundamental Operations on Numbers Ex 2.1 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 2 Fundamental Operations on Numbers Ex 2.1

Question 1.
Add 4 and 2 on a number line.

Solution:

1. First of all put a mark on 4 on number line.
2. To add 2, go from left to right one by one two steps.
3. Now we will reach on 6 and this is our answer.
   ∴ 4 + 2 = 6.

Question 2.
Add 6 and 4 on a number line.

Solution:

1. First of all put a mark on 6 on number line.
2. To add 4, go from left to right one by one four steps.
3. Now, we will reach on 10 and this is our answer.
   ∴ 6 + 4 = 10.

Question 3.
Subtract 2 from 6 on number line.

Solution:

1. First of all put a mark on 6 on number line.
2. To subtract 2, go back from right to left one by one two steps.
3. Now, we will reach on 4 and this our answer.
   ∴ 6 – 2 = 4.

Question 4.
Subtract 6 from 11 on a number line.

Solution:

1. First of all pur a mark on 11 on the number line.
2. To subtract 6, go back from right to left, one by one, six steps.
3. Now, we will reach on 5 and this is our answer.
   ∴ 11 – 6 = 5.

5. Solve the following :

Question 1.
374 + 202
Solution:

Question 2.
356 + 122
Solution:

Question 3.
4251 + 1244
Solution:

Question 4.
7000 + 1789
Solution:

Question 5.
999 – 234
Solution:

Question 6.
798 – 130
Solution:

Question 7.
9825 – 1214
Solution:

Question 8.
7896 – 1234.
Solution:

6. Solve the following:

Question 1.
769 + 584
Solution:

Question 2.
649 + 161
Solution:

Question 3.
3009 + 5691
Solution:

Question 4.
2347 + 7437
Solution:

Question 5.
769 + 444 + 325
Solution:

Question 6.
688 + 100 + 135
Solution:

Question 7.
2807 + 5938 + 1238
Solution:

Question 8.
7644 + 166 + 1234
Solution:

Question 9.
768 – 119
Solution:

Question 10.
6307 – 4156
Solution:

Question 11.
7503 – 1219
Solution:

Question 12.
7000 – 1234.
Solution:

7. Subtract and verify your answer :

Question 1.
7610 – 1733
Solution:

Question 2.
6113 – 1167
Solution:

Question 3.
6501 – 1212
Solution:

Question 4.
4368 – 1239
Solution:

Question 5.
7001 – 1678.
Solution:

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 10 Patterns Ex 10.1 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 10 Patterns Ex 10.1

Question 1.
Observe the pattern carefully and complete it.

Solution:

Question 2.
Students of a particular school who have liking for different types of fruits.
(a) 9981
(b) 6039
(c) 243
(d) 6308
(e) 6415
(f) 9108
(g) 1728
(h) 8714
(i) 53694
(j) 40819.
Solution:
(a) 9981
First of all omit 9’s from the given number

Remaining digits of number = 8,1
Now add the remaining• digits e.
= 8, 1
8 + 1 = 9
omit this 9
Now there is no digit left’
Hence, this number is a multiple of 9
Second Method: 9981
Sum of the digits = 9 + 9 + 8 + 1 = 27

Because, sum of digits is divisible by 9
Hence, this number is a multiple of 9

(b) 6039
Sum of the digits = 6 + 0 + 3 + 9 = 18
Because sum of digits is divisible by 9

Hence, this number is multiple of 9.

(c) 243
Sum of the digits = 2 + 4 + 3 = 9

Because, sum of digits is divisible by 9
Hence, this number is a multiple of 9

(d) 6308
Sum of the digits = 6 + 3 + 0 + 8 = 17

Because sum of digits is not divisible by 9
Hence, this number is not a multiple of 9
(e) 6415
Sum of the digits = 6 + 4 + 1 + 5 = 16

Because, sum of digits is not divisible by 9
Hence, this number is not a multiple of 9

(f) 9108
Sum of the digits = 9 + 1 + 0 + 8 = 18

Because sum of digits is divisible by 9
Hence, this number is a multiple of 9

(g) 1728
Sum of the digits = 1 + 7 + 2 + 8 = 18

Because sum of digits is divisible by 9
Hence, this number is a multiple of 9

(h) 8714
Sum of the digits = 8 + 7 + 1 + 4 = 20

Because sum of digits is divisible by 9
Hence, this number is a multiple of 9

(i) 53694
Sum of the digits = 5 + 3 + 6 + 9 + 4 = 27

Because sum of digits is divisible by 9
Hence, this number is a multiple of 9

(j) 40819.
Sum of the digits = 4 + 0 + 8 + 1 + 9 = 22

Because sum of digits is not divisible by 9
Hence, this number is nòt a multiple of 9

Question 3.
Multiply the given numbers using pattern:
(a) 35 × 10 = ………
(b) 9 × 10 = ………
(c) 21 × 10 = ……..
(d) 106 × 10 = ……..
(e) 148 × 10 = ………
(f) 2 × 1oo = ……….
(g) 20 × 1oo = ………
(h) 38 × 100 = ……..
(i) 209 × 100 = ……..
(j) 406 × 100 = ………
Solution:
(a) 350,
(b) 90,
(c) 210,
(d) 1060,
(e) 1480,
(f) 200,
(g) 2000,
(h) 3800,
(j) 20900,
(j) 40600.

Question 4.
Divide the given numbers (Using patterns) :
(a) 60 ÷ 10 = ………..
(b) 700 ÷ 10 = ……..
(c) 96 ÷ 10 = ……….
(d) 600 ÷ 100 = ……….
(e) 1500 ÷ 100 = ……….
(f) 1000 ÷ 100 = …….
Solution:
(a) 6,
(b) 70,
(c) 96,
(d) 6,
(e) 15,
(f) 10.

Question 5.
Fill in the blanks:
(a) …….. × 10 = 500
(b) …… ÷ 10 = 96
(c) ……. × 100 = 900
(d) …….. ÷ 100 = 7
Solution:
(a) 50,
(b) 960,
(c) 9,
(d) 700.

Question 6.
Complete the following towers:



Solution:
(a) 5 + 6 = 11, 7 + 9 = 16
(b) 6 + 8 = 14, 10 + 14 = 24, 16 + 24 = 40
(c) 15 + 20 = 35, 25 + 35 = 60, 40 + 60 = 100.

Question 7.
Multiply the given numbers in one line:

Solution:

2 × 3 = 6
∴ 25 × 25 = 625

5 × 6 = 30
∴ 55 × 55 = 3025

7 × 8 = 56
∴ 75 × 75 = 5625

12 × 13 = 156
∴ 125 × 125 = 15625

10 × 11 = 110
∴ 105 × 105 = 11025

40 × 41 = 1640
∴ 405 × 405 = 164025

Question 8.
Solve:
(a) (13 × 13) – (12 × 12)
(b) (18 × 18) – (17 × 17)
(c) (35 × 35) – (34 × 34)
(d) (120 × 120) – (119 × 119)
(e) (151 × 151) – (150 × 150)
solution:
(a) 13 + 12 = 25,
(b) 18 + 17 = 35,
(c) 35 + 34 = 69,
(d) 120 + 119 = 239,
(e) 151 + 150 = 301.

Question 9.
Complete the series according to pattern:
(a) 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55
11 + 12 + 13 + 14 + …….. + 19 + 20 = 155
21 + 22 + 23 + 24 + …… + 29 + 30 = 255
31 + 32 + 33 + 34 + …… + 39 + 40 = ………..
41 + 42 + 43 + 44 + …….. + 49 + 50 = ………..
51 + 52 + 53 + 54 + …….. + 59 + 60 = ……….

(b) 1 × 1 = 1
11 × 11 = 121
111 × 111 = 12321
1111 × 1111 = 1234321
11111 × 11111 = ……….
111111 × 111111 = ……….
111111 × 111111 = ………..
Solution:
(a) 355, 455, 555,
(b) 123454321, 12345654321, 1234567654321.

Question 10.
Find an easy method to complete the series. Write next three numbers using this method:
(a) 7, 12, 17, ……, …….., ………..
(b) 2, 4, 8, ……., ………., ………..
(c) 100, 90, 80, ……., ………., ………..
(d) 66, 55, 44, ……., ………., ………..
(e) 108, 208, 308, ……., ………., ………..
(f) 40, 39, 38, ……., ………., ………..
Solution:
(a) 22, 27, 32,
(b) 16, 32, 64,
(c) 70, 60, 50,
(d) 33, 22, 11,
(e) 408, 508, 608
(f) 37, 36, 35

Question 11.
Draw symmetry lines in the following:


Solution:

Question 12.
Complete the given symmetrical patterns:

Solution:

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 9 Data Handling Worksheet Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 9 Data Handling Worksheet

Question 1.
Uniforms are distributed in a school from Classes I to V.

(i) Uniforms were distributed among 20 students of class 1st. (✓ or ✗)
(ii) Uniforms were distributed among 7 students of class 5. (✓ or ✗)
(iii) Uniforms were distributed among ………. students of class 3.
(iv) In which class 25 uniforms were distributed ?
(a) class-I
(b) class-II
(c) class-IV
(d) class-V.
(v) Which class received the least number of uniforms ?
(a) class-I
(b) class-II
(c) class-III
(d) class-V.
(vi) Find the total number of students who received uniforms ?
(a) 125
(b) 25
(c) 65
(d) 100.
Solution:
(i) ✓,
(ii) ✗,
(iii) 15,
(iv) (b),
(v) (c),
(vi) (a).

Question 2.
Students of a particular school who have liking for different types of fruits.

If there are 20 children in the class.
(i) Number of children who like mango is ……….
(ii) Find the number of children who like apple.
(a) 20
(b) 5
(c) 15
(d) 10.
(iii) Find the total number of children who like apple and banana both.
(a) 5
(b) 20
(c) 10
(d) 15.
(iv) Banana has been liked the most (✓ or ✗)
(v) Banana has been liked more than apple (✓ or ✗)
Solution:
(i) 10,
(ii) (b),
(iii) (c),
(iv) ✗,
(v) ✗.

Question 3.
The Pie Chart is also called
Solution:
The Circle Map.

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 9 Data Handling Ex 9.2 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 9 Data Handling Ex 9.2

Question 1.
Given bar graph represents the number of students absent during the week :

Read the bar graph carefully and answer the following questions :

(a) Find the number of students class 4 who are absent oh Monday ?
(b) On which day of the week no student was absent ?
(c) On which day of the week the maximum number of students were absent ?
(d) Find the number of students of 4th class who are absent on Friday ?
(e) On which two days of the week the number of absentee students are equal and how many ?
Solution:
(a) 7,
(b) Friday,
(c) Monday,
(d) zero
(e) Tuesday and Wednesday, the number of students absent on these days = 4, 4

Question 2.
Number of students who play different games are given below :
Kabbadi = 15
Kho-Kho = 10
Football = 25
Cricket = 20
Badminton = 5
Draw bargraph representing above data.
(*Scale of 5 children should be taken)
Solution:

Question 3.
There is a T20 cricket match between Australia and India at I.S. Bindra stadium Mohali. India scored following runs in 6 overs of power play.
Over no. 1 = 6
Over no. 2 = 9
Over no. 3 = 3
Over no. 4 = 18
Over no. 5 = 6
Over no. 6 = 12
Solution:
Draw bargarph representing above data.
(Hint: Scale – 3 Runs = 1 unit)

Question 4.
Look at the pie chart and answer the following :

(a) How many students come to get drenched in rain ?
(b) How many students do not like to get drenched in rain ?
If there are 32 children in a class.
(c) How many students like to be drenched in rain.
(d) How many students do not like to be drenched in rain.
Solution:
(a) \(\frac{3}{4}\),
(b) \(\frac{1}{4}\)
(c) \(\frac{3}{4}\) × 32 = 8
(c) \(\frac{1}{4}\) × 32 = 8

Question 5.
When the Teacher asked the students of fourth class, what do they like most, Tea, Coffee, or milk, the following table was obtained.

Total number of children = ……….
Represent the above data by a pie chart.
Solution:
10 + 5 + 5 = 20.

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 2 Fundamental Operations on Numbers Revision Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 2 Fundamental Operations on Numbers Revision Exercise

1. Solve the following:

Question 1.

Solution:

Question 2.

Solution:

Question 3.

Solution:

Question 4.

Solution:

2. Fill in the blanks:

Question 1.
15 + 26 = 26 +
Solution:
15

Question 2.
18 + 0 =
Solution:
18

Question 3.
13 × 1 =
Solution:
13

Question 4.
25 × 0 =
Solution:
0

Question 5.
32 – 0 =
Solution:
32

Question 6.
9 ÷ 9 =
Solution:
1

Question 7.
28 ÷ 4 =
Solution:
7

Question 8.
87 + 5 =
Solution:
92

Question 9.
54 ÷ 9 =
Solution:
6

Question 10.
16 ÷ 1 =
Solution:
16

Question 11.
18 – 18 =
Solution:
0

Question 12.
6 × 9 =
Solution:
54

Question 13.
0 ÷ 3 =
Solution:
0

Question 14.
83 ÷ 83 =
Solution:
1

3. Lets do:

Question 1.
In a school bus there are 32 boys and 16 girls. How many children are there in the bus?
Solution:
Number of boys = 32
Number of Girls = 16
Total no. of children in the bus = 48

Question 2.
Nirmal scored 93 marks in Punjabi and 98 marks in Maths. How much she secured in both the subjeds?
Solution:
Marks in Punjabi = 93
Marks in Maths = 98
Total marks secured in both the subjects = 191

4. Read the statements and solve:

Question 1.
Kamal bought 50 gas balloons. 19 balloons flew away. How many balloons were left behind?
Solution:
Total number of gas balloons = 50
Number of balloons flew away = – 19
Number of balloons left behind = 31

Question 2.
Mankaran has 350 mangoes. He gave 145 mangoes to her sister Harkirat and rest are given to his friend Ramesh. How many mangoes did Ramesh get?
Solution:
Number of mangoes Mankaran has = 350
Number of mangoes he has given to Harkirat = – 145
Number of Mangoes got by Rairiesh = 205

5. Solve the following questions :

Question 1.
There are 58 toffees in a packet. How many toffees are in 16 such packets ?
Solution:
Number of toffees in a packet = 58
Number of toffees in 16 packets = 58 × 16
Hence, the total number of toffees in 16 packets =

Question 2.
There are seven days in a week. How many days are there in 52 week ?
Solution:
Number of days in a week = 7
Number of days in 52 weeks = 52 × 7
Hence, the total number of days in 52 weeks

6. Understand and Solve the following:

Question 1.
5 men can sit in a car. What is the number of cars required for 20 men?
Solution:
5 men sits in the number of cars = 1
1 men sits in the number of cars = \(\frac{1}{5}\)
20 men sits in the number of cars
= \(\frac{1}{5}\) × 20 = 4

Question 2.
There are 368 cement bags in 8 trucks. Every truck has equal number of cement bags, find out cement bags in one truck.
Solution:
Number of cement bags in 8 trucks = 368
Number of cement bags in 1 truck = 368 ÷ 8 = 46

∴ Number of cement bags in one truck = 46.

Multiple Choice Questions

Read the problems carefully and choose out the correct option from the given options.

Question 1.
There are 55 children in a park. 5 another children reach there. Now find out the total number of children in the park ? Recognise the basic operation :
(a) 55 – 5
(b) 55 + 5
(c) 55 ÷ 5
(d) 55 × 5.
Solution:
(b) 55 + 5.

Question 2.
If every child is given 5 toffees, then number of toffees required for 35 children. Recognise the basic operation :
(a) 35 – 5
(b) 35 + 5
(c) 35 ÷ 5
(d) 35 × 5.
Solution:
(d) 35 × 5

Question 3.
The sum of two numbers is 120, if one number is 40, find he other number. Recognise the basic operation :
(a) 120 – 40
(b) 120 × 40
(c) 120 ÷ 40
(d) 120 + 40.
Solution:
(a) 120 – 40.

Question 4.
In 8 boxes 264 books are arranged equally. What are the number of books in each box. Recognise the basic operation :
(a) 264 – 8
(b) 264 ÷ 8
(c) 264 × 8
(d) 264 + 8.
Solution:
(b) 264 ÷ 8.

Question 5.
There are 500 bricks in a block. If we sell 200 bricks how many bricks were left behind ? Recognise the basic operation :
(a) 500 – 200
(b) 500 × 200
(c) 500 ÷ 200
(d) 500 + 200.
Solution:
(a) 500 – 200.

Question 6.
Ten people planted 480 plants. Each one of them planted same number of plants. Find out the number of plants planted by one person. Recognize the basic operation.
(a) 480 – 10
(b) 480 ÷ 10
(c) 480 × 10
(d) 480 + 10.
Solution:
(b) 480 ÷ 10

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 1 Numbers MCQ Questions and Answers.

PSEB 4th Class Maths Chapter 1 Numbers MCQ Questions

Question 1.
Which number comes before 2000?
(a) 2001
(b) 1999
(c) 2002
(d) 1001.
Answer:
(b) 1999

Question 2.
Which number is 1 greater than 9999?
(a) 9998
(b) 10000
(c) 8999
(d) 1000.
Answer:
(b) 10000

Question 3.
How do we write 39 in roman numerals?
(a) XXXV
(b) IXXX
(c) XXIX
(d) XXXIX.
Answer:
(d) XXXIX

Question 4.
What is the difference between 10000 and greatest 4 digit number ?
(a) 2
(b) 1
(c) 10
(d) 100.
Answer:
(b) 1

Question 5.
What should be added to 999 to get the smallest 4 digit number ?
(a) 10
(b) 1
(c) 3
(d) 4.
Answer:
(b) 1

Question 6.
Which is the smallest 4 digit number ?
(a) 1000
(b) 10000
(c) 9000
(d) 9999.
Answer:
(a) 1000

Question 7.
Write the place value of 8 in number 7986.
(a) 8
(b) 80
(c) 800
(d) 8000.
Answer:
(b) 80

Question 8.
Write the face value of 6 in 7691.
(a) 600
(b) 6
(c) 60
(d) 6000.
Answer:
(b) 6

Question 9.
Write largest 4 digits number by using digits 6, 7, 0 and 8.
(a) 7608
(b) 6708
(c) 8706
(d) 8760.
Answer:
(d) 8760

Question 10.
Which of the following Roman numerals is written wrong ?
(a) XVI
(b) XIV
(c) VXI
(d) XX.
Answer:
(c) VXI

Question 11.
Which number among the following should be written as Nine Thousand Nine Hundred and Ninety Nine ?
(a) 9099
(b) 9909
(c) 9999
(d) 9090.
Answer:
(c) 9999

Question 12.
4000 + 300 + 90 + 9 = ?
(a) 4039
(b) 4399
(c) 4990
(d) 4390.
Answer:
(b) 4399

Question 13.
Which is the largest 3 digits number ?
(a) 100
(b) 999
(c) 888
(d) 111.
Answer:
(b) 999

Question 14.
Which number comes between 9998 and 10000 ?
(a) 9999
(b) 9997
(c) 8999
(d) 9989.
Answer:
(a) 9999

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 1 Numbers Ex 1.6 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 1 Numbers Ex 1.6

Question 1.
Round off the number given below to the nearest tens :
(a) 12
(b) 35
(c) 98
(d) 185
(e) 342
(f) 847
Solution:
(a) 10
(b) 40
(c) 100
(d) 190
(e) 340
(f) 850

Question 2.
Round off the numbers given below to the nearest hundreds :
(a) 121
(b) 249
(c) 389
(d) 210
(e) 897
(f) 850
Solution:
(a) 100
(b) 200
(c) 400
(d) 200
(e) 900
(f) 900

Question 3.
Write True/False :
(a) Round off 29 to nearest tens is 20.
(b) Round off 870 to nearest tens is 900.
(c) Round off 56 to nearest tens is 50.
(d) Round off 789 to nearest tens is 780.
(e) Round off 951 to nearest tens is 1000.
Solution:
(a) Round off 29 to nearest tens is 20. (False)
(b) Round off 870 to nearest tens is 900. (True)
(c) Round off 56 to nearest tens is 50. (False)
(d) Round off 789 to nearest tens is 780. (False)
(e) Round off 951 to nearest tens is 1000. (True)

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 1 Numbers Ex 1.5 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 1 Numbers Ex 1.5

Question 1.
Write Roman numerals for the Hindu-Arabic numerals :
(a) 9 …………………..
(b) 12 …………………..
(c) 29 …………………..
(d) 35 …………………..
(e) 39 …………………..
Solution:
(a) 9  IX
(b) 12   XII
(c) 29   XXIX
(d) 35   XXXV
(e) 39    XXXIX

Question 2.
Write Hindu-Arabic Numerals for Roman numerals :
(a) VIII …………………..
(b) XV …………………..
(c) IX …………………..
(d) XXIV …………………..
(e) XXXVIII …………………..
Solution:
(a) VIII   8
(b) XV  15
(c) IX     9
(d) XXIV    24
(e) XXXVII    38

Question 3.
Match the following:

Solution:

Punjab State Board PSEB 4th Class Maths Book Solutions Chapter 1 Numbers Ex 1.4 Textbook Exercise Questions and Answers.

PSEB Solutions for Class 4 Maths Chapter 1 Numbers Ex 1.4

Question 1.
Fill in the blanks with (> greater, < smaller, = equal).
(a) 872 1872
(b) 9876 6789
(c) 2916 2961
(d) 4234 4234
(e) 3503 3350
(f) 6004 6040
(g) 5888 8885
(h) 8751 7851
Solution:
(a) 872 1872
(b) 9876 6789
(c) 2916 2961
(d) 4234 4234
(e) 3503 3350
(f) 6004 6040
(g) 5888 8885
(h) 8751 7851

Question 2.
Identify and write the greatest numbers from the numbers given below :
(a) 872, 278, 827, 728
(b) 6060, 6006, 6600, 6660
(c) 5831, 1358, 3185, 8135
(d) 4743, 7434, 4473, 4437
(e) 872, 3827, 5183, 3172
Solution:
(a) 872
(b) 6660
(c) 8135
(d) 7434
(e) 5183

Question 3.
Identify and write the smallest number from the numbers given below :
(a) 964, 772, 838, 946
(b) 8118, 8108, 8810, 1818
(c) 3234, 2343, 2334, 3342
(d) 927, 3972, 9327,4638
(e) 4348, 4483, 4834, 3448
Solution:
(a) 772
(b) 1818
(c) 2334
(d) 927
(e) 3448

Question 4.
Write the following numbers in ascending order :
(a) 906, 609, 960, 69
(b) 3749, 9473, 4973, 6147
(c) 6398, 3689, 4561, 6514
(d) 3618, 7225, 2752, 3643
(e) 2836, 8236, 4853, 5834
Solution:
(a) 69 < 609 < 906 <960
(b) 3749 < 4973 < 6147 < 9473
(c) 3689 < 4561 < 6398 < 6514
(d) 2752 < 3618 < 3643 < 7225
(e) 2836 < 4853 < 5834 < 8236.

Question 5.
Write the following numbers in descending order:
(a) 784, 884, 448, 874
(b) 6172, 7162, 6721, 7612
(c) 7228, 8272, 8722, 8227
(d) 9063, 3083, 4835, 6093
(e) 8326, 8623, 2836, 2863
Solution:
(a) 884 > 874 > 784 > 448
(b) 7612 > 7162 > 6721 > 6172
(c) 8722 > 8272 > 8227 > 7228
(d) 9063 > 6093 > 4835 > 3083
(e) 8623 > 8326 > 2863 > 2836.

Question 6.
Write the greatest and the smallest 4 digit number by using the digits 5, 7, 3 and 8.
Solution:
Greatest number = 8753, Smallest number = 3578.

Question 7.
Write the greatest and the smallest 4 digit number by using digits 2, 3, 0 and 9.
Solution:
Greatest number = 9320, Smallest number = 2039.