Math 1

Approved by

Government of Nepal, Ministry of Education, Science and Technology Curriculum
Development Centre Sanothimi, Bhaktapur as and additional learning materials.

Prime

MATHEMATICS

1

Pragya Books & Distributors Pvt. Ltd.

Printing history
First Edition 2077 B.S.

Authors
Dirgha Raj Mishra
Raj Kumar Mathema
Narayan Prasad Shrestha
Uma Raj Acharya
Bindu Kumar Shrestha
Yam Bahadur Poudel

Editors
D.N. Chaudhary
Ramesh Shrestha
Shivendra Karki

Language Editor
Gopal Krishna Bhattarai

Typist
Sujan Thapa
Ashok Tamang

Layout and design
Desktop Team

© Publisher
All rights reserved. No part of this book, or designs and
illustrations here within, may be reproduced or transmitted in
any form by any means without prior written permission.

ISBN : 978-993702180-4

Printed in Nepal

Published by
Pragya Books & Distributors Pvt. Ltd.

Lalitpur, Nepal
Tel : 5200575
email : [email protected]

Preface

Prime Mathematics 1 is a distinctly outstanding mathematics series designed
according to new curriculum in compliance with Curriculum Development
Centre (CDC) to meet international standard in the school level mathematics.
The innovative, lucid and logical arrangement of the contents make book in their
series coherent. The representation of ideas in each volume makes the series not
only unique but also a pioneer in the evaluation of activity based mathematics
teaching.
The subject is set in an easy and child-friendly pattern so that students will
discover learning mathematics is a fun thing to do even for the harder problems.
A lot of research, experimentation and careful graduation have gone into the
making of the series to ensure that the selection and presentation is systematic,
innovative, and both horizontally and vertically integrated for the students of
different levels.
Prime Mathematics 1 is based on child-centered teaching and learning
methodologies, so that the teachers can find teaching this series equally enjoyable.
We are optimistic that, this series shall bridge the existing inconsistencies
between the cognitive capacity of children and the subject-matter.
We owe an immense dept of gratitude to the publishers (Pragya Books
team) for their creative, thoughtful and inspirational support in bringing about the
series. Similarly, I would like to acknowledge the tremendous support of editors
team, teachers, educationists and well-wishers for their contribution, assistance
and encouragement in making this series a success. I would like to express my
special thanks to Sachin Maharjan (Wonjala Desktop) for his sincere support of
designing part of the book.
We hope this book will be another milestone in the advancement of
teaching and learning mathematics in Nepal. We solicit feedback and suggestions
from teachers, students and guardians alike so that we can refine, and improvise
the series in the future editions.

– Authors

Contents 1
3
UNIT 1 Concept of Shapes and Positions 9
Identifying Solid Shapes 15
Lines 25
Identifying Geometrical Shapes 37
Concept of Size and Position 38
UNIT 2 Concept of Numbers 50
Numbers up to 9. 53
Identifying Zero and Ten 64
Addition and Subtraction of Numbers upto 10. 71
Numbers from 11 to 20. 105
Numbers from 21 to 100. 106
UNIT 3 Concept of Pairing of Numbers 112
Greater, Smaller and Equal Numbers 114
Ordinal Numbers 118
Odd and Even Numbers 120
Number Before and After 123
Ascending and Descending Order 124
UNIT 4 Basic Operations 131
Addition of 2 Digit Numbers 134
Addition of 2 Digit Numbers with Carry Overs. 135
Subtraction in Number Line 145
Subtraction from 11 to 19 148
Word Problems on Subtraction 163
Concept of Devnagari Numbers 171
UNIT 5 Time 185
UNIT 6 Money 191
UNIT 7 Measurement 201
UNIT 8 Pictograph
UNIT 9 Additional Chapter

1Unit

Concept of Shapes and Positions

Identifying, Shapes, Sizes and
Position of Objects.

Identification of shape of objects
Concept of straight and curve
lines
Up and down objects
Distant objects
Left, right and middle objects
Before and after objects

Teaching Materials 1

Objects used in our daily life
Objects in our surroundings
Comparison of shapes and sizes
Mathematics 1

SONG

What shape is this?2
What's the name of this shape?
It's got three sides, It's got three corners
What's the name of this shape?

Let students guess !!
It's a triangle !!!

What shape is this?2
What's the name of this shape?
It's got four sides, it's got four corners
What's the name of this shape?

Let students guess !!
It's a quadrilateral !!!

What shape is this?2
What's the name of this shape?
It's a round shape, it's got no corners
What's the name of this shape?

Let students guess !!
It's a circle !!!

2 Mathematics 1

Identifying Solid Shapes

See, feel and learn.

I am sphere. I am like a sphere.

I am cuboid. I am like a cuboid.

I am cube. I am like a cube.

I am cone. I am like a cone.

Mathematics 1 3

I am cylinder. I am like a cylinder.

See, Learn and Understand.

I am sphere. I am cylinder. I am cone.

I am cuboid. I am cube.

Join the dots. Name and colour the pictures.

4 Mathematics 1

Name the following shapes for the given pictures.

It is ________ in shape. It is ________ in shape.

It is ________ in shape. It is ________ in shape.

Mathematics 1 5

It is ________ in shape. It is ________ in shape.

It is ________ in shape. It is ________ in shape.

It is ________ in shape. It is ________ in shape.

6 Mathematics 1

Match the following as shown below, and write
the name in box.

Cylinder

Mathematics 1 7

Name the shape of the following objects.

8 Mathematics 1

Lines
Concept of Straight line and Curve Line

Curved
Straight
Tick () for the straight line.

Mathematics 1 9

See, feel and do.
I am straight line.

Join the dots and make the straight lines.

10 Mathematics 1

See, feel and do. I am curved line.
I am curved line.

I am curved line. I am curved line.

These are curved lines.

Mathematics 1 11

Join the dots, and make the curve lines.

12 Mathematics 1

Trace in your copy as shown below.
Tracing with a ruler. Oh! It is straight.

Tracing with a coin.

Oh! It is curve.

Tracing with a book.

Oh! It is straight.

Mathematics 1 13

Identify and name the curve lines and straight
lines for each of the followings.

14 Mathematics 1

Identify Geometrical Shapes

See, Learn and Understand.

I am triangle. I am rectangle. I am square.

I have I have two I have
3 sides. pairs of equal 4 equal sides.
opposite sides.

I am circle. I am oval. I am kite.

I am totally I am similar I have two
round. to round. pairs of equal
sides together.
Mathematics 1
15

Draw the shapes and colour.
Triangle

Circle

Rectangle Mathematics 1

16

Draw the shapes and colour.
Square

Oval

Kite 17

Mathematics 1

Identify the shape and colour.
a) Triangle

b) Circle

c) Square Mathematics 1
d) Rectangle

18

e) Kite
f) Oval
g) Draw the three circle of different sizes.

h) Draw the curve lines. 19

Mathematics 1

Write down the name of shapes for the following.

20 Mathematics 1

Write down the name of shapes for the following.

Mathematics 1 21

What is my name? Mathematics 1
I have 3 sides.

I have 4 equal sides.

I have 2 pair of equal
opposite sides.

I am totally round.

I am similar to round
but not totally
round.

22

Do the followings: 23
a) Draw the triangles :

b) Draw the quadrilaterals :

c) Draw the kites :

Mathematics 1

d) Draw the rectangles :
e) Draw the squares :
f) Draw the circles :

24 Mathematics 1

Concept of Size and Position

Long and Short Short
Long
Tick () for longer one.

Mathematics 1 25

Tick () for shorter one.

26 Mathematics 1

Tall and Short

Tick () for taller one.

Mathematics 1 27

Tick () for shorter one.

28 Mathematics 1

Greater and Smaller Greater Smaller

Tick () for greater one.

Tick () for smaller one.

Mathematics 1 29

Before and After

Rita Sita Hari
Before others
w Rita is in front of them. After others

w Hari is at last (among them).

w Sita is before Hari.

w Sita is after Rita.

Tick the write answer.
Who is before Ram?

Shyam Ram Hari

Which is before Pencil?

Book Pencil Pen

30 Mathematics 1

Which is after Book?

Doll Book Apple

Which is after Football?

T.T. Bat Football Ludo

Farther and Nearer

Tick the write answer.

Who is nearer from the well?

Boy Girl Well
Who is nearer from the school?

Ram Shyam School

Mathematics 1 31

What is farther from the house?

Doll Book House

What is farther from the tree?

Rabbit Hen Tree

Left and Right

Pointing Pointing
Right Left

32 Mathematics 1

Tick the correct answer.
Who is on the left from the bicycle?

Boy Bicycle Teacher
Who is on the right from the well?

Bucket Well Utensil

Who is on the left from the house?

Daughter House Mother

Who is on the right from the father?

Daughter Father Son

Mathematics 1 33

Up and down

See, Learn and Understand.

Who is at up?

Who is at down? Pranav
Pranisha
Pratik

Which is at up? Mathematics 1
Which is at down?

34

What is at up? Cup
Ball Plate

Book

What is down?

What is in the middle? Tick ()

Dog Rabbit Cat

Mathematics 1 35

Observe the followings, and write down the
answers.

Boy Tree House
Tree is from boy.
House is
from boy.

Girl Dog Horse
Dog is from girl and horse.
Horse is
Girl is from the dog.
from the dog.

Sita Ram Swing
Who is nearer from swing ?
Who is farther from swing? Mathematics 1
Who is in between the others?

36

2Unit

Concept of Numbers

Identifying Number and Place Value.

Identifying, count, read and write Hindu
Arabic numbers upto 100
Identify and use the place value numbers
Identifying, count, read and write
Devanagari numbers upto 100
Identifying Devanagari numbers and words

Teaching Materials 37

Number cards
Abacus
Base 10 blocks
Number chart
Mathematics 1

SONG

One, Two, Three,
Now, I am free.
Four, Five, Six,
Play time is fix.
Seven, Eight, Nine,
I am always fine.

Numbers up to 9.

See, Learn and Understand.

One

1

Two Three

2 3

38 Mathematics 1

Four Five

45

Six Seven

67

Eight Nine

8 9

Mathematics 1 39

Count, learn and write.

11 1 1

22 2 2

33 3 3

4444

55 5 5 Mathematics 1

40

Count,learn and write. 41

66 6 6
77 7 7
88 8 8
99 9 9

Mathematics 1

SONG

One little, Two little, Three little fingers,
Four little, Five little, Six little fingers,

Seven little, Eight little, Nine little fingers,
Ten Little fingers Clap, Clap, Clap.

Ten little, Nine little, Eight little fingers,
Seven little, Six little, Five little fingers,
Four little, Three little, Two little fingers

One little finger Tap, Tap, Tap.

42 Mathematics 1

See, feel and do.

1 One One

2 Two Two

3 Three Three

4 Four Four

5 Five Five

6 Six Six

7 Seven Seven

8 Eight Eight

9 Nine Nine

Mathematics 1 43

Match the followings. Two
Four
1 One
2 Five
3 Three
4
5 Mathematics 1

44

Match the followings. Seven
Six
6 Nine

7 Eight

8 45

9

Mathematics 1

Count, and write the numbers and their name.

Picture Number Number
Name

1 One

46 Mathematics 1