NCERT Textbook - Fields And Fences | Mathematics for Class 4: NCERT PDF Download

 Page 1


Rahmat is a farmer. He grows wheat in his field.
Rahmat bought a roll of 70 m wire for
the fence.
Uhm---m! The
boundary is
54 metres long.
Fields and Fences
9 metre
9 metre
15 metre
21 metre
0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12
I need a fence
around my field.
How much wire
should I buy?
Rahmat needs to find the length of the boundary of the field. Can
you find it from this picture? See the length of each side written
near it.
149
13
2024-25
Page 2


Rahmat is a farmer. He grows wheat in his field.
Rahmat bought a roll of 70 m wire for
the fence.
Uhm---m! The
boundary is
54 metres long.
Fields and Fences
9 metre
9 metre
15 metre
21 metre
0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12
I need a fence
around my field.
How much wire
should I buy?
Rahmat needs to find the length of the boundary of the field. Can
you find it from this picture? See the length of each side written
near it.
149
13
2024-25
How much wire did Rahmat give to Ganpat? ________
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
Ganpat thanked Rahmat and started
fencing his own field. But he needed
to get more wire.
How long is the boundary of
Ganpat's field? ____________
How much more wire will Ganpat
need for his field? __________
g
g
I should also
do the same
for my field.
18 m
9 m
15 m
15 m
9 m
150
Ganpat
PracticeTime
151
2024-25
Page 3


Rahmat is a farmer. He grows wheat in his field.
Rahmat bought a roll of 70 m wire for
the fence.
Uhm---m! The
boundary is
54 metres long.
Fields and Fences
9 metre
9 metre
15 metre
21 metre
0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12
I need a fence
around my field.
How much wire
should I buy?
Rahmat needs to find the length of the boundary of the field. Can
you find it from this picture? See the length of each side written
near it.
149
13
2024-25
How much wire did Rahmat give to Ganpat? ________
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
Ganpat thanked Rahmat and started
fencing his own field. But he needed
to get more wire.
How long is the boundary of
Ganpat's field? ____________
How much more wire will Ganpat
need for his field? __________
g
g
I should also
do the same
for my field.
18 m
9 m
15 m
15 m
9 m
150
Ganpat
PracticeTime
151
2024-25
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
I should also
do the same
for my field.
150
Ganpat
PracticeTime
1. Here are pictures of some more fields. Find out which one has
the longest boundary.
Boundary = __________ metre
c)
Boundary = __________ metre
Boundary = __________ metre
a)
24 metre
6 metre
15 metre
15 metre
Boundary = __________ metre
b)
12 metre
6 metre
9 metre
6 metre
6 metre
3 metre
15 metre
12 metre
9 metre
d)
9 metre
15 metre
15 metre
15 metre
15 metre
9 metre
151
2024-25
Page 4


Rahmat is a farmer. He grows wheat in his field.
Rahmat bought a roll of 70 m wire for
the fence.
Uhm---m! The
boundary is
54 metres long.
Fields and Fences
9 metre
9 metre
15 metre
21 metre
0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12
I need a fence
around my field.
How much wire
should I buy?
Rahmat needs to find the length of the boundary of the field. Can
you find it from this picture? See the length of each side written
near it.
149
13
2024-25
How much wire did Rahmat give to Ganpat? ________
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
Ganpat thanked Rahmat and started
fencing his own field. But he needed
to get more wire.
How long is the boundary of
Ganpat's field? ____________
How much more wire will Ganpat
need for his field? __________
g
g
I should also
do the same
for my field.
18 m
9 m
15 m
15 m
9 m
150
Ganpat
PracticeTime
151
2024-25
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
I should also
do the same
for my field.
150
Ganpat
PracticeTime
1. Here are pictures of some more fields. Find out which one has
the longest boundary.
Boundary = __________ metre
c)
Boundary = __________ metre
Boundary = __________ metre
a)
24 metre
6 metre
15 metre
15 metre
Boundary = __________ metre
b)
12 metre
6 metre
9 metre
6 metre
6 metre
3 metre
15 metre
12 metre
9 metre
d)
9 metre
15 metre
15 metre
15 metre
15 metre
9 metre
151
2024-25
2. Chandu's father is called the
'young old man' in his village.
At 70 years of age, he is fully
fit. Do you know his secret?
He goes for a walk around the
field every morning. Everyday
he takes four rounds of
Chandu's field.
What is the total distance he
covers?
4 × ______ = ______ m = ______ km
g
3. Ganpat's wife works in a tailor's shop. She has to fix lace
around a table cloth.
She bought a 100 metre roll of lace.
Look at the picture of the table cloth and tell how much lace is
used for one table cloth. _________________
g
g
g
How much lace will be used in 3 such table cloths? _________
How much lace will be left in the roll? ____________
1 m 50 cm
1 m 50 cm
50 cm
50 cm
100 m
100 m
152
150 m
150 m
Activity
153
D
C
B A
Childrencouldbeaskedtoignoreasquareifitislessthanhalf,butcountitas1ifismore
thanhalf.Thiswillgivethema feelfor'roundingoff'.
2024-25
Page 5


Rahmat is a farmer. He grows wheat in his field.
Rahmat bought a roll of 70 m wire for
the fence.
Uhm---m! The
boundary is
54 metres long.
Fields and Fences
9 metre
9 metre
15 metre
21 metre
0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 12
I need a fence
around my field.
How much wire
should I buy?
Rahmat needs to find the length of the boundary of the field. Can
you find it from this picture? See the length of each side written
near it.
149
13
2024-25
How much wire did Rahmat give to Ganpat? ________
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
Ganpat thanked Rahmat and started
fencing his own field. But he needed
to get more wire.
How long is the boundary of
Ganpat's field? ____________
How much more wire will Ganpat
need for his field? __________
g
g
I should also
do the same
for my field.
18 m
9 m
15 m
15 m
9 m
150
Ganpat
PracticeTime
151
2024-25
Can you give me the
wire that is left
with you? I will use
it for my field.
Oh sure,
why not!
I should also
do the same
for my field.
150
Ganpat
PracticeTime
1. Here are pictures of some more fields. Find out which one has
the longest boundary.
Boundary = __________ metre
c)
Boundary = __________ metre
Boundary = __________ metre
a)
24 metre
6 metre
15 metre
15 metre
Boundary = __________ metre
b)
12 metre
6 metre
9 metre
6 metre
6 metre
3 metre
15 metre
12 metre
9 metre
d)
9 metre
15 metre
15 metre
15 metre
15 metre
9 metre
151
2024-25
2. Chandu's father is called the
'young old man' in his village.
At 70 years of age, he is fully
fit. Do you know his secret?
He goes for a walk around the
field every morning. Everyday
he takes four rounds of
Chandu's field.
What is the total distance he
covers?
4 × ______ = ______ m = ______ km
g
3. Ganpat's wife works in a tailor's shop. She has to fix lace
around a table cloth.
She bought a 100 metre roll of lace.
Look at the picture of the table cloth and tell how much lace is
used for one table cloth. _________________
g
g
g
How much lace will be used in 3 such table cloths? _________
How much lace will be left in the roll? ____________
1 m 50 cm
1 m 50 cm
50 cm
50 cm
100 m
100 m
152
150 m
150 m
Activity
153
D
C
B A
Childrencouldbeaskedtoignoreasquareifitislessthanhalf,butcountitas1ifismore
thanhalf.Thiswillgivethema feelfor'roundingoff'.
2024-25
152
Activity
1. (Hint :– You
can use a thread)
Find out the length of the boundary of these shapes.
Now count the squares to find out :
How many squares are there in each shape?
Which shape covers the least number of squares?
Which shape covers the most number of squares?
2. Take a 20 centimetre long thread. Make different shapes by
joining the ends. Place on the squared sheet on the next page.
Find out:
How many squares are there in each shape?
Which is the biggest shape?
Which is the smallest shape?
How long is the boundary of each shape?
g
g
g
g
g
g
g
153
D
C
B A
Childrencouldbeaskedtoignoreasquareifitislessthanhalf,butcountitas1ifismore
thanhalf.Thiswillgivethema feelfor'roundingoff'.
2024-25