Oasis Math 3

Author
Shyam Datta Adhikari

M.Sc. (Maths), TU

Tel: +977-1-4313205

Oasis School Mathematics Book-3 1

Name : ...............................................................

Class : .......................... Roll No. : ..............

Section : ..............................................................

School : ................................................................

Publisher
Oasis Publication Pvt. Ltd.
Copyright
The Publisher
Edition
First Edition : 2077
Second Edition : 2078

Language Editor
Sedunath Dhakal
Layout
Oasis Desktop
Printed in Nepal

2 Oasis School Mathematics Book-3

Oasis School Mathematics is an activity -oriented and interactive book intended for
the students of Basic level. It has been designed in compliance with the Integrated
Curriculum (2075 B.S.) of the Curriculum Development Center (CDC), the Government
of Nepal, with the focus on child psychology of requiring mathematical knowledge
and skills.

An integrated curriculum is described as one that connects different areas of study by
cutting across the subject matter lines and emphasizing unifying concept. It focuses
on making connections for students, allowing them to engage in relevant, meaningful
activities that can be connected to the real life. Mathematical knowledge and skills are
directly connected with our real life activities.

The major thrust is on creating an enjoyable experience in learning Mathematics
through the inclusion of variety of problems which are closely related to our practical
life. This book is expected to foster the positive attitude among children and encourages
them to enjoy mathematics. A genuine attempt has been made to present mathematical
concepts with ample illustrations, assignments, activities, exercises and project works
to students so as to encourage them to participate actively in the learning process.

I have tried to connect the subject matter with different themes by means of different
mathematical activities, project works, and worksheets. I make sure that this book
makes learning meaningful by allowing students to engage in meaningful and relevant
activities that can be connected to the real life.

This book has been prepared incorporating the subject matter with different themes
prescribed by the Integrated Curriculum of CDC 2075. So, I strongly believe that this
book is really helpful to implement this Integrated Curriculum.

I am highly grateful to principals, administrators, experts and mathematics teachers
who have provided me with opportunities to anticipate in workshops, teachers training
programmes and interaction programmes as a resource person. Their invaluable
feedback has helped me revise and update this series. I am very much proud of my
students who are-the source of encouragement for me to go ahead with this project. I
am also highly grateful to Mr. Sedunath Dhakal for editing the language of the series.

My grateful thanks go to Managing Director for his invaluable support and cooperation
in getting this series published in this shape.

At the end, constructive and practical suggestions of all kinds for further improvement
of the book will be appreciated and incorporated in course of revision.

Author March 2021

Oasis School Mathematics Book-3 3

Contents

1. Theme: My Daily Life 5-20

• Measurement of Time

• Conversion of Time

2. Theme: Sense of Number 21-53

• Numbers upto 6 digits

• Building of Numbers

• Pattern of Number

3. Theme: Our Community 54-83

• Ascending and Descending order of Number

• Odd and Even Numbers

• Length

• Fraction

• Local Number

4. Theme: My Creation 88-111

• Point and Lines

• Angles

• Geometrical Shape

5. Theme: Basic Operations on Mathematics 112-176

• Addition

• Subtraction

• Multiplication

• Division

6. Theme: My Daily Life 177-189

• Hours, Days, Weeks, Months and Years

• Calendar

7. Theme : Communication, Technology and Market 190-238

• Currency • Capacity • Length

• Weight • Pictograph

8. Theme: Measurement 239-249

• Area

Model Test Paper 250-254

4 Oasis School Mathematics Book-3

My Daily
Life

Contents
• Measurement of Time
• Conversion of Time

Oasis School Mathematics Book-3 5

Review: Measurement of Time

Look and learn.

7: 00 3: 30

The minute hand is at 12. The minute hand is at 6.
The hour hand is at 7. The hour hand is between 3 and 4.
It is 7 o'clock. It is half past 3.
It is also called 30 minutes past 3.

11: 15 1: 45

The minute hand is at 3. The minute hand is at 9.
The hour hand is between 11 and 12. The hour hand is between 1 and 2.
It is quarter past 11. It is quarter to 2. It is 45 minutes
It is also called 15 minutes past 11. past 1.
It is 15 minutes to 2.
Write the time in the given boxes:

6 Oasis School Mathematics Book-3

Measurement of time in Minutes

Look and learn.

The minute hand is at 5 .
The hour hand is between 2 and 3 .
It is near to 2 .
It is 25 minutes past 2 .
It is written as 2 : 25 .

The minute hand is at 10 .
The hour hand is between 6 and 7 .
It is near to 7 .
It is 50 minutes past 6 or 10 .
It is written as 6 : 50 .

Oasis School Mathematics Book-3 7

Minute hand of the clock is between 12 and 1
It is near to 1 .
Hour hand is near to 3 .
It is 3 minutes past 3 .
It is written as 3 : 03 .

Minute hand of the clock is between and
Hour hand is near to 10 and
It is 12 minutes past 10
It is written as 10 : 12

Complete as above:

Minute hand of the clock is between

Hour hand of the clock is near to

It is minutes past .

It is written as .

Minute hand of the clock is between and
Hour hand of the clock is near to
It is minutes past
It is written as

8 Oasis School Mathematics Book-3

Minute hand of the clock is between and

Hour hand of the clock is near to

It is minutes past .

It is written as .

Minute hand of the clock is between and

Hour hand of the clock is near to

It is minutes past .

It is written as .

Write the time as shown: 25 minutes past 8 =
10 minutes past 6 = 6 : 10 5 minutes past 9 =
35 minutes past 4 = 20 minutes past 7 =
40 minutes past 3 = 36 minutes past 10 =
8 minutes past 5 =

Write the time as shown:

5 : 25 = 25 minutes past 5 6 : 15 =
10 : 08 = 12 : 35 =
1 : 20 = 3 : 25 =
5 : 14 = 8 : 50 =

Oasis School Mathematics Book-3 9

Exercise

1. Write what time is it?

2. Draw the hour and the minute hands in the given clock:

8 : 00 7 : 34 7 : 26 8 : 49

3 : 35 6 : 55 5 : 24 3 : 56

10 Oasis School Mathematics Book-3

Time in Hour, Minutes and Second.
There are 3 hands in a clock.
Short and thick and is hour hand.
Long hand is minute hand.
Thin and long hand is second hand.

1hour = 60 minutes
1 minute = 60 seconds
Lets find the time shown in above clock.
Second hand of the clock is near to 6 .
Minute hand of the clock is at 10 .
Hour hand of the clock is near to 2 .
It is 30 second 50 minutes past 1 .
It is written as 1 : 50 : 30 .

Write the time in hour, minutes and seconds.

Oasis School Mathematics Book-3 11

Time before and after the given Time.

It is 7 o'clock now. Guess the time after 2 hours.

8, 9 ........
It will be 9 o'clock.

Guess the time before 2 hours.

It was 5 o'clock.

It is 9:15 now. Guess the time after 20 minutes.

15 + 20 = 35.
It will be 9 : 35.

Guess the time before 10 minutes.

15 – 10 = 5.
It was 9 : 05.

Exercise

1. Write the time after the given interval of time:

Present time After New time
11 : 00
9 : 00 2 hours

5 : 30 3 hours

6 : 20 30 minutes
9 : 10 15 minutes
11 : 20 20 minutes

12 Oasis School Mathematics Book-3

2. Make the hands of the clock after the given time interval:
After 2 hours

After 3 hours

After 15 minutes

After 10 minutes

3. Write the time before the given interval of time:

Present time Before New time

9 : 15 15 minutes 9 : 00

5 : 30 30 minutes

3 : 20 2 hours

6 : 40 3 hours

7 : 45 45 minutes

Oasis School Mathematics Book-3 13

4. Make the hands of the clock before the given period of time:
Before 2 hours

Before 3 hours

Before 30 minutes

Before 15 minutes

5. Write the time before the given interval of time:
It is 10 o'clock now. What will be the time after 1 hour?
It is 6 o'clock now. What was the time before 2 hours?
It is 6:45 now. What will be the time after 10 minutes?
It is 8:30 now. What was the time before 20 minutes?

14 Oasis School Mathematics Book-3

Conversion of Time

Relation between hour and minutes

Look and learn.

One hour = 60 minutes I understand !
2 hours = 2 × 60 minutes To convert hour into
3 hours = 3 × 60 minutes minutes, we have to
multiply hour by 60.

Convert 3 hours 10 minutes into minutes
3 hours 10 minutes = 3 × 60 minutes + 10 minutes
= 180 minutes + 10 minutes
= 190 minutes
Convert the following into minutes:

a. 4 hours b. 3 hours c. 5 hours
= 4 × 60 minutes
= 240 minutes

d. 7 hours 25 mins e. 2 hours 30 mins f. 4 hours 5 mins

Convert the following into minutes in your copy:

a. 2 hours b. 4 hours c. 8 hours

d. 2 hours 15 minutes e. 1 hours 45 minutes f. 3 hours 30 minutes

g. 4 hours 10 minutes h. 2 hours 50 minutes i. 1 hours 40 minutes

Oasis School Mathematics Book-3 15

My Daily Life

Time taken by Sundar in his daily activities are given below:

1 hours 5 minutes 2 hours 15 minutes

1 hours 35 minutes 3 hours 20 minutes

Convert time taken by Sundar in her daily activities in minutes.

Taking bath Doing homework
Taking class
Playing

16 Oasis School Mathematics Book-3

Relation between Minute and second.

There are three hands in a clock.
Hour hand, minute and second hand.
It takes 12 hours to make one complete rotation.
It takes 60 minutes or 1 hour to make one complete rotation.
It takes 60 seconds or 1 minute to make one complete rotation.

1 minute = 60 seconds
= 2 × 60 seconds
3 minutes = 120 seconds
= 180 seconds

Convert 5 minutes 20 seconds into seconds:
5 minutes 20 seconds
= 5 × 60 seconds + 20 seconds
= 300 seconds + 20 seconds
= 320 seconds

Convert the following into seconds:

a. 4 minutes. b. 7 minutes c. 8 minutes

d. 4 mins 15 sec e. 5 mins 30 sec f. 10 mins 45 sec

Oasis School Mathematics Book-3 17

Convert the following into seconds in your copy:
a. 3 minutes b. 6 minutes c. 9 minutes
d. 2 minutes 20 seconds e. 5 minutes 35 seconds
Saleem runs 1 km in 5 minutes 15 seconds. How much seconds
does he take to cover 1 km?

Pemba claps once in 1 second. How many times does he clap in 1
minutes 5 seconds?

18 Oasis School Mathematics Book-3

Objective Questions

Choose the correct alternative:
1. How many minutes are there in 3 hours?

60 mins 120 mins 180 mins
5 : 15
2. Quarter to 5 can be written as

5 : 00 4 : 45

3. How many seconds are there in 2 minutes?

60 seconds 120 seconds 180 seconds

4. What will be the time if the minute hand is at 2 and the hour hand is between 6 and 7?

7 : 10 6 : 10 6 : 50

5. 25 minutes past 3 can be written as

3 : 35 3 : 25 3 : 30

6. Ashmi starts to do her homework at 5 : 00. It takes 2 hours to complete her homework.
At what time does she complete her homework?

8 : 00 9 : 00 7 : 00

7. It is 10 o'clock now, after 3 hours the time will be

7 o'clock 12 o'clock 1 o'clock

8. It takes 1 hour 20 minutes to walk from Ratnapark to Jawalakhel. The time
taken in minutes is

80 minutes 60 minutes 40 minutes

9. 1 minutes 15 seconds is equal to

45 seconds 60 seconds 75 seconds

10. Minute hand of a clock is at 6 and hour hand is between 11 and 12, then the
time is

11 : 30 11 : 00 12 : 30

Oasis School Mathematics Book-3 19

Unit Evaluation Full Marks : 16

1. Write the time on each of the clocks: 4

2. Fill in the blanks: 2
seconds
1 hour = minutes 1 minute =
2
3. Convert 2 hours 15 minutes into minutes.

4. Convert 3 minutes 20 seconds into seconds. 2

5. Hari's examination starts from 2 o'clock. Exam will be over after

2 hours 15 minutes. At which time exam will be over? 2

6. A man complete a race in 2 minutes 16 second. Find in how many

seconds he complete the race? 2

7. It takes 15 minutes to reach to school from my home. My school
starts at 10:00 A.M. At which time to go to school from my home? 2

20 Oasis School Mathematics Book-3

Sense of
Numbers

Contents
• Numbers upto 6-digits
• Building of Numbers
• Pattern of Number

Oasis School Mathematics Book-3 21

Numbers upto 6 digits

Review: Three digit Number

10 Ones = 1 Tens
10 Tens = 1 Hundreds

1 Hundreds 1 Tens 1 Ones
Count Hundreds, Tens and Ones to form the number:

Hundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones

Write in standard form: 700 + 20 + 6
3 Hundreds + 5 Tens + 6 Ones 800 + 60 + 8
500 + 40 + 3
2 Hundreds + 7 Tens

5 Hundreds + 8 Ones

Write the correct number in the box.

HT O HT O HT O

Write the number names of the following numbers:
347 I learnt all these

in class II.

862
708
902

22 Oasis School Mathematics Book-3

Write the missing numbers: 315
305 310 426
416 422 880
870 876

Write the number which is 10 more than:

468 478 785 345
202
562 805
Write the number which is 100 more than:

2 63 3 63 472 814

723 465 387

Write in expanded form:

462 = ++ 902 = + +

385 = ++ 850 = + +

Write the place value of each digit of the given numbers:

364 983

740 509

Colour the greatest number red and the smallest one blue:
462 585 324 263 645
379 489 924 124 745
378 249 132 692 463
784 324 633 569 365

Oasis School Mathematics Book-3 23

Four digit Numbers 10 Ones = 1 Ten

Look and learn.

This is 1 One.
These are 10 Ones
It is one Ten.

10 Tens 10 Tens = 1 Hundred
1 Hundreds

10 Hundreds

10 Hundreds = 1 Thousand
1 Thousands

Count Thousands, Hundreds,Tens and Ones to form number:

TH H T O
2345
2 Thousands 3 Hundreds 4 Tens 5 Ones
TH H T O

Thousands Hundreds Tens Ones

24 Oasis School Mathematics Book-3

Write the correct number in the box:

TH H T O

+ ++=

Thousands Hundreds Tens Ones

TH H T O

+ ++=
Thousands Hundreds Tens Ones

TH H T O

+ ++=
Thousands Hundreds Tens Ones

TH H T O

+ ++=
Thousands Hundreds Tens Ones

Oasis School Mathematics Book-3 25

Formation of numbers using abacus

Look and learn.

An abacus is a tool for counting. This abacus has four rods, one each for
thousands, hundreds, tens and ones place.

Thousands Hundreds Tens Ones
(T) (O)
(TH) (H) 6 5

TH H T O 23

2365 Two thousand three hundred and sixty five

How to read four-digit numbers?

First read thousands place, 5263

then hundreds place and read Five thousands Sixty three

the last two digits together. Two hundreds

Write the number names of the following:
2384 =
3628 =
5708 =
3065 =
1761 =

Study the given abacus and form the number:
Thousands Hundreds Tens Ones

TH H T O

26 Oasis School Mathematics Book-3

To write the number and number name from the given
information of abacus.

Form the number from the given abacus and put it on the place value
chart:

Thousands Hundreds Tens Ones

TH H T O

Thousands Hundreds Tens Ones

TH H T O

Thousands Hundreds Tens Ones

TH H T O

Thousands Hundreds Tens Ones

TH H T O

Show the given numeral in the place value chart and write their number
name:

Thousands Hundreds Tens Ones
4625 =

Oasis School Mathematics Book-3 27

Thousands Hundreds Tens Ones
3271 =

Thousands Hundreds Tens Ones
7204 =

Thousands Hundreds Tens Ones
9382 =

Use the given place value chart to write the number and the number
name:

TH H T O 2091
2091 Two thousand ninety one

TH H T O
5369

TH H T O
3701

TH H T O
1999

28 Oasis School Mathematics Book-3

Place value and Face value

Look and learn.

Look at this place value chart.

Thousands Hundreds Tens Ones
3 7 6 4

3 is in Thousands place. It has value 3 × 1000 = 3000.

Its face value = 3 and place value = 3000.

7 is in Hundreds place. It has value 7 × 100 = 700.

Its face value = 7 and place value = 700. I understand! The face value
6 is in Tens place. It has value 6 × 10 = 60. of given number = given
Its face value = 6 and place value = 60. number itself while
4 is in ones place. It has value 4 × 1 = 4. place value = face value â its
place

Its face value = 4 and place value = 4.

Write the place value of the coloured digit:

3684 4295 6357 9268 5312

3000

6549 5480 6307 9082 7265

Write the place value of the digits of the given numbers:

3285 7692

8402 6085

Write the face value of the coloured digits: 178 2
768 9
1268 5821
Oasis School Mathematics Book-3 29
3792 723 4

Standard and Expanded form

Look and learn.

4682 = 4 Thousands + 6 Hundreds + 8 Tens + 2 Ones
4000 + 600 + 80 + 2

7206 = 7 Thousands + 2 Hundreds + 0 Tens + 6 Ones

7000 + 200 + 00 + 6 Expanded form

Standard form

Write in expanded form:

8624 = + + +

2463 = + + +

5309 = + + +

3657 = + + +

Write the correct number in the box:

3628 = Thousands + Hundreds + Tens + Ones

5437 = Thousands + Hundreds + Tens + Ones

6028 = Thousands + Hundreds + Tens + Ones

Write in standard form:

4000 + 600 + 20 + 7 = 3000 + 200 + 50 + 4 =

6000 + 400 + 10 + 3 = 2000 + 700 + 60 + 1 =

7000 + 80 + 2 = 8000 + 500 + 6 =

Use of comma (,) in four-digit numbers

2675 has four digits.

2, 675 Count 3 digits from the right and put a comma (,).
Put the comma (,):

3589 4685 3792

4065 9269 5702

30 Oasis School Mathematics Book-3

Comparison of four-digit Numbers

Look and learn.

Compare the numbers 3625 and 5859.
Put them in place value chart.

TH H T O Compare the digits at Remember !
Thousands place. '<' is less than
' > ' is greater than
3 6 2 5 3 < 5 ' = ' is equal to

5 8 2 9 3625 < 5829

Put > or < I understand, the number
8762 7658 3764 1294 having the greater digit
3295 5120 2179 3018 in thousands place is the
4619 6200 6248 4247
greater number.

If the digits in the place of thousands are the same,

Ram has Rs 5612. Sita has Rs 5275.
Who has more money?

Put them in place value chart.

TH H T O Digits at Thousands place are the same.
5612 Compare the digits at Hundreds place.
5275 6 > 2

5612 > 5275

Oasis School Mathematics Book-3 31

Put > or < If thousands digits are the
same, we have to compare
3714 3365
5672 5784 Hundreds digit.
6532 6818
9712 9624
5972 5996

If the digits in the place of Thousands and Hundreds place are the same:

Lets compare the numbers 6283 and 6254.
Put them in place value chart.

TH H T O Digits at Thousands and Hundreds place are the same.
6283 Compare the digits at Tens place.
6254
8 > 5
6283 > 6254

Put > or < If thousands and hundreds
digits are the same, we have
1762 1785
3294 3254 to compare Tens digit.
8617 8626
6423 6417
3916 3977
4618 4674
7612 7604
8923 8954

32 Oasis School Mathematics Book-3

If first 3 digits are same

out of 5782 and 5786, which is greater?
Put them in place value chart.

TH H T O Digits at Thousands, Hundreds and Tens place
5782 are same. Compare the digits at Ones place.

2 < 6

5786 5782 < 5786

Put > or < If Thousands, Hundreds
2384 2381 and Tens digits are the
7256 7259 same, we have to compare
8314 8316
1256 1259 Ones digit.
3629 3623

Note: If the digits at Thousands, Hundreds, Tens and Ones all are
equal, then the two numbers are equal.

Circle the bigger number.

7264 7518 2317 1784

4316 5634 6234 6231

8216 8264 1234 4321

2018 2016 3568 3569

1112 2764 5068 4034

7264 7518 7264 7518

Oasis School Mathematics Book-3 33

Four-digits Number in Devanagari

tn lbOPsf] :yfgdfg tflnsfsf] cWoog u/L $ cs+ sf] ;ª\Vof kQf nufpgx' f;] \ / ;ª\Vofsf]
gfd nV] g'xf];\ .

xhf/ ;o b; Ps ;ª\Vof M # @ ! $
# @ ! $ ;ª\Vofsf] gfd M tLg xhf/ bO' { ;o rf}w

xhf/ ;o b; Ps ;ª\Vof M

% $ % ^ ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

@ ! ( * ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

& % # ! ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

@ @ * * ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

* % ) @ ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

% $ % ^ ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

^ ) ) % ;ª\Vofsf] gfd M

xhf/ ;o b; Ps ;ª\Vof M

# ) ! ( ;ª\Vofsf] gfd M

34 Oasis School Mathematics Book-3

Five-digit Numbers

Look and learn.

The largest 4-digit number is 9999.
What comes after this?
9999 + 1 = 10000, the smallest five digit number.

Ten thousands Thousands Ten Thousands Thousands

Similarly, 10 Thousands = 1 Ten Thousands

2 Ten Thousands = 20 Thousand New place for 5 digit
3 Ten Thousands = 30 Thousand numbers is tens thousands

Take a five digit number and put it on the place value chart: 56184

T.TH TH H T O
5 6184

5 Ten Thousands + 6 Thousands + 1 Hundreds + 8 Tens + 4 Ones
To read the number name of five-digit numbers

Write the number names of the following numbers:
54,321 =
63,824 =
56,360 =
41,056 =

Oasis School Mathematics Book-3 35

Place value of five digit Numbers

Look and learn.

Let's take a five-digit number 37124. 37124
Put it on the place value chart: 100

T.TH TH H T O 30000 4
3 7124 7000 20

Place value of 4 = 4 ones = 4 × 1 = 4
Place value of 2 = 2 Tens = 2 × 10 = 20
Place value of 1 = 1 Hundred = 1 × 100 = 100
Place value of 7 = 7 Thousands = 7 × 1000 = 7000
Place value of 3 = 3 Ten thousands = 3 × 10,000 = 30,000

\ 37124 = 30,000 + 7000 + 100 + 20 + 4

Standard form Expanded form

Write in the expanded form:

61,432 = ++ + +

37,981 = + + ++

46,018 = + + ++

39,285 = + + ++

Write the place value of the digits of the given numbers:

......... 54021 ......... ......... 30201 .........
......... ......... ......... ......... ......... .........

......... 96213 ......... 62190 .........
......... ......... ......... ......... .........
.........

.........

36 Oasis School Mathematics Book-3

Exercise

1. Put the following numbers in the place value chart and write the
number name:

46,825 T.TH TH H T O

57,126 T.TH TH H T O

17,824 T.TH TH H T O

68,374 T.TH TH H T O

64,046 T.TH TH H T O

2. Write the correct number:
Twenty seven thousand six hundred fifty-one
Eighty two thousand fifty-seven
Sixty four thousand three hundred twenty-nine
Seventy six thousand eight hundred forty-two
Ninety thousand seven hundred twenty

3. Write the missing numbers:

Oasis School Mathematics Book-3 37

4. Write the number which comes just before:

54,321 66,549 22,600

60,240 75,624 28,300
38,842 83,192 37,800

5. Write the number which comes just after:

16,120 23,376 11,999

45,327 41,654 37,309

56,319 80,004 42,652

6. Put a comma at the right place:

36854 24129 96827 57924 85690 53281

7. Write in expanded form:

34821 = + + + +

50732 = + + + +

48065 = + + + +

64301 = + + + +

38 Oasis School Mathematics Book-3

8. Write the place value of the coloured digit:

9. Write the numerals in standard form:

20000 + 3000 + 200 + 50 + 4 =

40000 + 500 + 60 + 7 =

80000 + 4000 + 20 + 3 =

90000 + 6000 + 300 + 1 =

Comparison of five digit Numbers

Look and learn.

Take any two five digit numbers, 37128 63942 63947
and 43175.
Compare Ten Thousands place 3 < 4 ===<=
\ 37128 < 43175 \ 63942 < 63947
Again,

56379 and 54126

Compare Ten Thousands 5 = 5 Now, I understand how to
Compare Thousands 6 > 4 compare 5 digit numbers.

\ 56379 > 54126

Circle the bigger number.

45621 52159 62436 62448

26184 23192 79648 79641
53215 53719 20379 20381

Oasis School Mathematics Book-3 39

Counting by 1’s, 10’s, 100’s, and 1000’s 3230
6774
Count by 1’s. (Skip the ones place by 1.)
1000 1001 1002 1003 2375
4749
3225 1700
2820
6768 4444
Count by 10’s. (Skip the tens place by 1.)

1000 1010 1020

2305

4679
Count by 100’s. (Skip the hundreds place by 1.)

1000 1100

2120 2220

3744 3844
Count by 1000’s. (Skip the thousands place by 1.)

1000 2000 3000

1460 2460

40 Oasis School Mathematics Book-3

Counting by 10’s, 100’s, 1000’s and 10,000's

Count by 10’s. (Skip the tens place by 1.)

12314 12324

93325 93335

37509 37519
Count by 100’s. (Skip the hundreds place by 1.)

23436 23536

54932 55032

67143
Count by 1000’s. (Skip the thousands place by 1.)

43124 44124

12135

31714
Count by 10,000’s. (Skip the ten thousands place by 1.)

12814 22814

22375

15619

Oasis School Mathematics Book-3 41

Six-digit Numbers The smallest 6-digit
number is 100000.
Look and learn.

The largest number of 5 digits is 99999.
1 more than 99999 is 100000. It is one lakh.
Place value chart of 1 lakh.

Lakhs T.TH TH H T O
1 0 0000

Note: 10 Ten Thousands = 1 Lakh I understand, 6-digit
100000 = 1 Lakh numbers start from lakhs.

200000 = 2 Lakhs 300000 = 3 Lakhs

400000 = 4 Lakhs 500000 = 5 Lakhs

Place value chart of 6 digit numbers:

872653 Lakhs T.TH TH H T O
8 7 2653

Eight lakh seventy-two thousand six hundred fifty-three
872653 = 8 Lakhs + 7 Ten Thousands + 2 Thousands + 6 Hundreds+ 5 Tens
+ 3 Ones.

How to read the 6 digit numbers?

42 Oasis School Mathematics Book-3

How to use a comma (,) in six digit Numbers?

Look and learn.

721846 has six digits

721, 846 Count three digits from the right and put a comma.

7, 21, 846 Count next two digits from the right and put the second
comma.

A comma separates lakhs and thousands from the rest.
Use a comma:

374092 3,74,092 541362 658129

301654 138452 615312

Put comma (,) in the appropriate place and write the number names of
the following numbers:

123507

421652

304812

742509

281316

632415

712520

843000

Oasis School Mathematics Book-3 43

Show the given numbers in place value chart and write their number
names:
2,38,562 Lakhs T.TH TH H T O

1,78,340 Lakhs T.TH TH H T O

5,32,146 Lakhs T.TH TH H T O

Write the numerals:
Five lakh twenty eight thousand four hundred thirty-two
Two lakh sixty nine thousand eight hundred twenty-nine
Three lakh four thousand two hundred twenty
Six lakh five hundred thirty-one
Eight lakh twenty seven thousand sixty-four
Nine lakh fourteen thousand three hundred eighty-three
Write the following numbers in short form:
2 Lakhs + 7 Ten Thousands + 3 Thousands + 2 Hundreds
+ 3 Tens + 1 Ones =
5 Lakhs + 0 Ten Thousands + 2 Thousands + 3 Hundreds
+ 7 Tens + 0 Ones =

44 Oasis School Mathematics Book-3

Building of numbers

Look and learn.

Let's form the smallest and the greatest number formed with

digits 2, 0, 6, 3, 9, 1

Descending order of given digits I understand! While
9, 6, 3, 2, 1, 0 forming the greatest
\ The greatest number = 63210 number, we have to
arrange the digits in
Ascending order of given digits
descending order.

0, 1, 2, 3, 6 0 is not to be written at the
\ The smallest number = 10236. extreme left.

Note: = 9999
The greatest number of 4 digits = 1000
The smallest number of 4 digits = 99999
The greatest number of 5 digits = 10000
The smallest number of 5 digits

Form the smallest and the greatest number from the given digits:

Digits Greatest number Smallest number

2, 3, 4, 6
5, 8, 4, 2, 0
5, 4, 1, 2, 4
3, 2, 1, 5, 0

2, 0, 8, 9, 6

5, 3, 2, 8, 1

0, 1, 2, 3, 4

Oasis School Mathematics Book-3 45

Pattern of Number

Look and learn.

Pasang studies 3 pages of a book in the first
day. She studies 5 pages in the second day
and 7 pages in the third day. Lets try to find
the number of pages she studies in fourth,
fifth and sixth days.

First day Second day Third day Fourth day Fifth day Sixth day

35 7

+2 2 7+2 = 9

Every day she studies 2 more pages.
Guess,

► How much does she study in fourth day?

► How much does she study in fifth day?

► How much does she study in sixth day?

Saleem pushed up 12 times in
the first day. He pushed up 16
times in the second day and 20
times in the third day. Guess,
how many times will he push
up in 4th, 5th and 6th day?

First day Second day Third day Fourth day Fifth day Sixth day

12 16 20

46 Oasis School Mathematics Book-3

Fill up the following boxes using pattern.
246
10 15 20
10 20 30
23 33 43
111 222 333
824 724 624
3 10 17
50 150 250

1234 2234 3234
1 10 100
20 200 2000

3257 4257 5257
1234 1235 1236

Oasis School Mathematics Book-3 47

Complete the following pattern.

69 12

48 Oasis School Mathematics Book-3

Miscellaneous Exercise 54632

1. Write the place value of the coloured digit.
3752 19643 832521 327085

2. Use a comma ( , ) in appropriate places.

384625 97642 392001

7326 57186 430215

3. Put <, > or = .

37214 5316 83721 327184 27184 27162

53142 53631 736145 756421 56256 56256

4. Buildthegreatestandthesmallestnumberformedbythefollowingdigits.

Digits Greatest number Smallest number

2, 7, 0, 6, 4
3, 7, 6, 2
5, 1, 6, 3, 2, 0
6, 3, 4, 5, 1, 2
4, 5, 6, 0, 1

5. Write the number name of the following numbers:
6 , 4 2 8 ...................................................
4 5 , 0 0 3 ...................................................
6 3 , 1 5 4 ...................................................
2 , 5 4 , 1 6 8 ...................................................
3 , 4 8 , 0 2 5 ...................................................

Oasis School Mathematics Book-3 49

6. Write the correct number in the box.
Sixty three thousand five hundred sixty

Seven lakh six thousand eighty

Twenty six lakh forty eight thousand four hundred thirteen

Thirty seven lakh eight thousand fifty one

Twenty eight lakh eighty-seven

7. Count by 1’s:

4264, 4265, , ,

52362, 52363, , ,

248615, 248616, , ,

8. Count by 10’s:

3516 3526
+1 +1

25136 25146
+1 +1

9. Count by 100’s:

2316 2416
+1 +1

56125 +1 56225 +1

10. Count by 1000’s:

23584 24584
+1 +1

3864 4864
+1 +1

50 Oasis School Mathematics Book-3