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F R E E S T U D Y M AT E R I A L F O R E V E R Y S T U D E N T
+ ×
C L A S S 2 · M AT H S
NCERT Solutions
Chapter 7: Rani’s Gift
NCERT Textbook — Joyful Mathematics
BOOK PAGES SECTIONS QUESTIONS MEDIUM
71 – 82 17 51 English
Every question Step by step Exam ready
Activities, in-text questions The working shown, not Written to match how
and all exercises. just the final answer. marks are awarded.
Solutions, notes, sample papers & more at 51 pages
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C L A SS 2 · M AT H S · JOY F UL M AT HE M AT IC S
NCERT So ut ons — C apt r 7: Ran ʼs G t
l i h e i if
This chapter is about measuring. We measure length, weight and how much a bottle holds.
T E XT B OOK B OOK PAGE S
Joyful Mathematics Class 2 71 82
S EC T I ONS QU E ST I ONS
17 51
M EDI UM
English
Let us Read — Page 71–72 s
Raniʼs Gift — a bed 10 handspans long
Q1 “1,2…8 It is only 8 handspans!ˮ
“But how is it possible?ˮ
Carpenter: Raja: Boy:
10 handspans 8 handspans 14 handspans
t he bed
Mantr s st
iʼ ick
The story in short: one bed, three different counts. The Mantri holds a stick.
Their hands are not the same size.
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Raja 8
Carpenter 10
Boy 14
The same bed. A big hand needs fewer spans. A small hand needs more.
− Exp anat on
l i
The carpenter used his own hand. He made 10 handspans.
The Rajaʼs hand is bigger. So he counts only 8.
The boyʼs hand is small. He counts 14.
Why A big hand covers more of the bed in one span
: .
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Q2 D s uss t
i c he solution which w as given by the Man i
tr to solve the confusion.
Carpenter: Raja: Boy:
10 handspans 8 handspans 14 handspans
t he bed
Mantr s st
iʼ ick
The story in short: one bed, three different counts. The Mantri holds a stick.
Measure with one same stick .
The Man i holds a stick
tr .
Measure the bed with that stick.
Everyone will get the same number.
Why The stick is the same for everyone Hands are not
: . .
Let us Do — Page 72
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M asur w t your t xt oo
co m
m.
e e i h e b k
as e
Q1 com
Us your
.
t xt oo to m asur t ngth of the following objects.
a g l
m
ase
e e b k e e he le
agl OBJECTS ESTIMATED LENGTH ACTUAL LENGTH
m
Desk
. co ag
e m
as
Blackboard
a g l
Window
co m
e m.
c om g l as
.
Sampelemanswer your numbers can be different a
s
gla
: .
a OBJECTS ESTIMATED LENGTH ACTUAL LENGTH
m a s
Desk
m.co agl
5 books 4 books
l a se
Blackboard 12 books
a g 10 books
Window
m
6 books 5 books
. co
e m
− Exp am
l as
.co
nat on
a g
l i
a s em
First guess Write it under E ima ed leng h
a gl
. st t t .
Lay the book along the object again and again.
Count the books. Write it under Actual length.
se m
com g l a
m . a
ase guess Actual means what you counted
Why Estimated means lyour
ag
: . .
co m
m .
as e
com
Let us Do. — Page 73 a g l
m
ase
agl c
m .
m a s e
e m . co agl
g l as
a
co m
m .
m ase
.co
a g l Page 4 of 51
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Kav ta s way to s oo T
i ʼ ch l · he l a
ongest nd the shortest p th a
Q1 Kav ta s o n to t s oo rom r om . S s tt n at . W
i i g i g he ch l f he h e he i ge i g l e hich path should she
us to r a t s oo ast? Mar t n t p tur
e e ch he v n
ch ow.l f k i i he ic e gi e bel
Home
School
Kav ta s om s on t
i ʼ h e i he lef . t The school is on the right.
Go up. Turn right. Take the first road down. Then go straight to the school.
Home
School
T
he red dashes show a short way to school.
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− Exp anat on
l i
Lay a thread along each way.
The shortest thread is the fastest way.
Why A shorter path takes less time
: .
Tip: Check with a thread from her home. The ways along the bottom road are a
little longer.
Q2 C oos t
h e he l ongest path from A to B.
Path 1 Path 2 Path 3
A A A
B B B
T r
h ee red paths from A to B on the same grid.
Path is the longest
3 .
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Path 3
A 1
2
3
4
6 5
7
8 9 10
B
Ea ch small red line of Path 3 is counted.
− Exp anat on
l i
Count the small red lines on each path.
Path 1 has 6. Path 2 has 8.
Path 3 has 10.
Why : 10 is more than 8 and 6.
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Q3 A so ma
l ke the shortest path between A and B.
Path 1 Path 2 Path 3
A A A
B B B
T r
h ee red paths from A to B on the same grid.
Draw a path with only 6 small lines, like Path 1.
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co m
em.
as
ase
m .co
m
Path 1 a g l
agl
A . co m
ag
e m
g l as
1 a
co m
2 e m.
m l as
m .co a g
l a se 3
a g
om a s
m.c4 agl
l a se
a g
5
co m
m .
6lase
agla
sem
.co
m
ag B
se m
com g l a
Ea
m .
small red line of Path 1 is counted.
a
ase
ch
− Exp anat on
l i
agl
co m
Always move towards B.
m .
m
Go 3 lines across and 3 lines down.
as e
.coNever turn back. a g l
se m
g l a
a Why Turning back makes a path longer c
m .
: .
m a s e
e m . co agl
g l as
a
How Many Blocks? — Page 74
co m
m .
m ase
.co
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Fill in the blanks
Q1 L t m sta t
e e o
ck he bl cks and find the height of my toys.
F nt
ill i an s.
he bl k
A. T ra
he gis ffe i _________ bl ocks tall.
elephant giraffe camel monkey
Toys stan n xt to a tow r o
d e e ocks. All blocks are the same size.
f bl
The giraffe is 9 blocks tall.
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10
9
8
7
6
5
4
3
2
1
elephant giraffe camel monkey
B o s ount
l ck c ed f rom the ground up. Dashes show where each toy reaches.
− Exp anat on
l i
Look at the top of the giraffeʼs head.
Look across to the tower.
Count the blocks from the ground: 1, 2, … 9.
Why All blocks are the same size So we can count them
: . .
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Q2 L t m sta t
e e o s an n t
ck he bl ck d fi d he heigh t of my toys.
F nt
ill i an s.
he bl k
B. T s 7 o s ta .
he _________ i bl ck ll
elephant giraffe camel mon key
Toys stan n xt to a tow r o
d e e ocks. All blocks are the same size.
f bl
The camel is 7 blocks tall.
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10
9
8
7
6
5
4
3
2
1
elephant giraffe camel monkey
B o s ount
l ck c ed f rom the ground up. Dashes show where each toy reaches.
− Exp anat on
l i
Count 7 blocks from the ground.
Look across from the 7th block.
The camelʼs head is there.
Why The camel reaches the top of block
: 7.
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co m
m.
Q3 L t m sta t o s and find the height of my toys.
e
e e ck he bl ck
F nt
ill i
o man s.
C. T .cmon y s
he bl k
g l as
a
sem
he ke i _________ bl ocks tall.
a
agl
co m
e m . ag
g l as
a
co m
em.
m l as
m .co a g
l a se
a g
m a s
m .co agl
l a se
a g
elephant giraffe camel mon key
co m
m .
e
Toys stan n xt to a tow r o ocks. All blocks are the same size.
m as
d e e f bl
.co a g l
a s em
agl A NSW E R
The monkey is 2 blocks tall.
se m
com g l a
m . a
ase
agl
co m
m .
m as e
.co a g l
se m
g l a
a c
m .
m a s e
e m . co agl
g l as
a
co m
m .
m ase
.co
a g l Page 14 of 51
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10
9
8
7
6
5
4
3
2
1
elephant giraffe camel monkey
B o s ount
l ck c ed f rom the ground up. Dashes show where each toy reaches.
− Exp anat on
l i
Look at the top of the monkeyʼs head.
Count the blocks from the ground: 1, 2.
Why The monkey is small It reaches only blocks
: . 2 .
Tip: Its head is a little above block 2. So about 2 is right.
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Q4 L t m sta t
e e ock he bl ck s and find the height of my toys.
F nt
ill i an s.
he bl k
D. T p ant s
he ele h i _______ bl ocks tall.
elephant giraffe camel monkey
Toys stan n xt to a tow r o
d e e ocks. All blocks are the same size.
f bl
The elephant is 6 blocks tall.
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10
9
8
7
6
5
4
3
2
1
elephant giraffe camel monkey
B o s ount
l ck c ed f rom the ground up. Dashes show where each toy reaches.
− Exp anat on
l i
Look at the top of the elephantʼs head.
Count the blocks from the ground: 1, 2, … 6.
Why Its head is at about the top of block
: 6.
Tip: In the book the head reaches about halfway up block 7. So 6 or 7 are both
fine.
Let us Do — Page 75
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How long is your hand?
Q1 How on
l s your hand? Trace your hand in the space given below and count the
g i
number of lines.
The li ned space for tracing your hand.
Sample answer My hand is about
: 10 lines long.
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co m
e m.
m l as
m .co a g
l a se
ag
co m
e m . ag
g l as
a
m
.co
abmout
m e
as lines
.co a g l
10
se m
g l a
a
m a s
m.co agl
l a se
a g
A tra an Count t nes from wrist to fingertip.
m
ced h d. he li
. co
e m
− Exp am
l as
.co
nat on
a g
l i
a s em
gl
Put your hand flat on the lines
a
.
Draw around it with a pencil.
Count the lines from the wrist to the longest finger.
se m
com g l a
. a
Why The gap betweenltaheselimnes is always the same So lines can measure
ag
: .
length.
co m
m .
m as e
.co a g l
s mject Work — Page 75
Pero
gl a
a c
m .
m a s e
e m . co agl
g l as
a
co m
m .
m as e
.co
a g l Page 19 of 51
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M asur t n s at om
e e hi g h e
Q1 Fn t
i n t o t
d o ow n us n any too o your
he le g h f he f ll i g i g l f ch oice (eraser, blocks, pencil).
R or your m asur m nt.
ec d e e e
Any wa o your ous ll f h e
L n t o your
e g h f bed
L n t o a oor
e g h f d
Sample answer I used a pencil : .
THING LENGTH
A wall of my house 17 pencils
My bed 11 pencils
A door 12 pencils
Pick one tool, like a pencil.
Lay it end to end. Mark where it ends each time.
Count and write the number.
Why Use the same tool for all Then you can compare
: . .
Pumpkin s Chaupal ʼ — Page 76
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Ligh e a a
t r nd he vier veget bles a
Q1 Loo at t p tur an ompar w
k he ic e v d c e hich egetables are lighter or heavier than the other
vegeta s. ble
Sp u
eech b : “I t you, I am t most
bble ell he ___________.ˮ
m heavier I tell you , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am
I ______
than pumpkin .
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
I tell you I am the most light It means I am the lightest
, . : .)
This bubble belongs to a green chilli.
A chilli is small and thin.
It is the lightest one in the picture.
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Q2 Loo at t p tur an
k he ic e d c ompare which vegetables are lighter or heavier than the other
vegeta s. ble
Sp u
eech b : “I am bble _______ than pumpkin.ˮ
m heavier I tell you , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am ______
I
than pumpkin.
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
I am heavier than pumpkin .
− Exp anat on
l i
This bubble belongs to the watermelon.
A watermelon is big and full of water.
Why Things full of water feel heavy
: .
Tip: This is a guess. A very big pumpkin can be heavier. Then write lighter.
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Q3 W at o you t n
h d hi k is heavier— a pumpkin or a watermelon? Discuss.
m heavier tell you
I , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am ______
I
than pumpkin.
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
Sample answer I think the watermelon is heavier
: .
− Exp anat on
l i
Both are big.
Size alone does not tell us.
Put them on a balance. The side that goes down is heavier.
Why A balance shows which one is heavier
: .
Tip: Both answers can be right. It depends on the fruit.
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co m
m.
Q4 Loo at t p tur an ompar w vegetables are lighter or heavier than the other
e
k he ic e d c e hich
F n .tcoman s.
v egeta s. ble
g l as
m a
aBs.eCaps um s t r t an
ill i he bl k
agl
ic i ligh e h ___________.
tell you om am heavier am lighter
m heavier .c ag
I , I I I
em
am the most than bottle than
Iʼ
than a carrot s
a gourd cauliflower.
agl
.
______. .
. caomm
m
ase than pumpkin
I ______
m
.co agl
.
se m
g l a
a
m a s
m .co agl
l a se
a g
bottle gourd muskmelon pumpkin capsicum watermelon
cam
co
radish chillies cauliflower
.
rrot
s an a wat rm on ta T wor sem
a s
com
Pump n s C aupa t vegetable s are from
agl
ki ʼ h l: he d e el nt u lk. he d i he b bble
m.
t oo
e
he b k.
g l as
a
se m
Capsicum is lighter than cauliflower . com g l a
a
sem
.
Find the capsicumʼs bubblel. a
g
It says, “I am lighter thanacauliflower.ˮ
co m
Why The picture tells us this m .
as e
: .
m l
.co
m T p Pumpkin or watermelon is also right a g
l a se
g
i : .
a c
m .
m a s e
e m . co agl
g l as
a
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m .
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Q5 Loo at t p tur an ompar w
k he ic e d c e hich vegetables are lighter or heavier than the other
v
ege ta s. ble
F nt
ill i an s.
he bl k
C. s av r t an
___________ i he ie h ___________.
m heavier I tell you , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am
I ______
than pumpkin .
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
Pumpkin is heavier than bottle gourd .
Find the pumpkinʼs bubble.
It says, “I am heavier than bottle gourd.ˮ
Why The heavier one pulls down more
: .
Tip: You can also write: Watermelon is heavier than carrot.
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Q6 Loo at t p tur an ompar w
k he ic e d c e hich vegetables are lighter or heavier than the other
v
ege ta s. ble
F nt
ill i an s.
he bl k
D. s t r t an
___________ i ligh e h ___________.
m heavier I tell you , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am
I ______
than pumpkin .
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
Carrot is lighter than bottle gourd .
The bottle gourd says, “Iʼm heavier than a carrot.ˮ
So the carrot is lighter.
Why If A is heavier than B then B is lighter than A
: , .
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Q7 Loo at t p tur an ompar w
k he ic e d c e hich vegetables are lighter or heavier than the other
v
ege ta s. ble
F nt
ill i an s.
he bl k
E. st
___________ iav st o a .he he ie f ll
m heavier I tell you , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am
I ______
than pumpkin .
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
Watermelon is the heaviest of all .
The biggest ones are the pumpkin and the watermelon.
We guessed the watermelon is heavier.
Why The heaviest is heavier than all the others
: .
Tip: If you chose the pumpkin, write pumpkin.
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Q8 Loo at t p tur an ompar w
k he ic e d c e hich vegetables are lighter or heavier than the other
v
ege ta s. ble
F nt
ill i an s.
he bl k
F. st
___________ it st o a . he ligh e f ll
m heavier I tell you , I I am heavier Iam lighter
am the most than bottle than
Iʼ
than a carrot .
______. gourd. cauliflower.
am
I ______
than pumpkin .
bottle gourd muskmelon pumpkin capsicum watermelon
radish chillies cauliflower carrot
Pump n s C aupa t
ki ʼ h l: he vegetables and a watermelon talk. The words in the bubbles are from
the book.
Chilli is the lightest of all .
A chilli is the smallest and thinnest.
All the others are heavier.
Why The lightest is lighter than all the others
: .
Let us Do — Page 77
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L a
t nd he vy · a Ma your own B l nce! aa
co m
m.
igh ke
as e
Co tcaomw t n s rom your surroun n s. Sort out t g l
Q1 . a
t st and the heaviest
em t os . Arran a t t n s n t n r as n or
llec fe hi g f di g he ligh e
asmon
gla
g h e ge ll he hi g i he i c e i g der of their weight.
a
Sample answer feather eraser pencil box w.actoem
ag
r bottle school bag
em
: , , , , .
a s
− Exp anat on
l i
agl
Hold two things, one in each hand.
co m
Put the lighter one first.
em.
Do this m l as
.co g
till all are in a line.
em a
a s
a gl hy Increasing order means lightest first heaviest last
W : , .
m a s
m .co agl
l a se
Q2 How o you now w
d k as
hich i g light and which is heavy?
co m
m .
I lift themm as e
.co
. Or I put them on a balance.
a g l
em
s
a Hold one thing in each hand
gl The heavy one pulls your hand down more
.
a .
On a balance, the heavy side goes down.
se m
com g l a
m.e
Why Heavy things pull downsemor a
a
agl
: .
co m
m .
m as e
.co a g l
se m
g l a
a c
m .
m a s e
e m . co agl
g l as
a
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m .
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Q3 Ma keyour own Balance!
Ma ke your own balance with the help of a paper cup, thread and a hanger like the one
shown here. Now compare any two objects like eraser, ball, bead, pencil, crayon, etc.,
to see which one is heavier.
hanger
paper cup paper cup
A a an
b l ce made from a hanger, thread and paper cups.
Hang a paper cup from each end of a hanger.
− Exp anat on
l i
Tie the cups to the hanger with thread.
Hang the hanger from a hook.
Put an eraser in one cup and a crayon in the other.
Why The cup that goes down holds the heavier thing
: .
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Let us Do — Page 77–78s
Cr
i cle a
the he viest one · Circle the lightest one
Q1 Cr
i cle ◯ the heaviest one.
A.
pencil notebook school bag
Row A a p n
e cil, a not oo an a s oo a
eb k d ch l b g.
Circle the school bag .
A pencil is small and thin .
A notebook is a little heavier .
A school bag holds many books .
Why Many things together weigh more
: .
Page 31 of 51
Page 33
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gl e l i
Q2 Cr
i cle ◯ the heaviest one.
B.
bag of oranges bucket box of crayons
Row B a a o oran s a u
b g f ge , b t of water and a box of crayons.
cke
Circle the bucket .
A box of crayons is light .
A bag of oranges is heavier .
A bucket full of water is the heaviest .
Why Water is heavy
: .
Tip: If the bucket is empty, the oranges are heavier.
Page 32 of 51
Page 34
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gl e l i
Q3 Cr
i cle ◯ the lightest one.
A.
doll gift box eraser
Row A a o a
d ll, t box and an eraser.
gif
Circle the eraser .
A doll and a gift box are bigger .
An eraser is small .
Why A small eraser is lighter than the others
: .
Q4 Cr
i cle ◯ the lightest one.
B.
ball matchbox balloon
Row B a a a mat
b ll, chb ox and a balloon.
Circle the balloon .
Page 33 of 51
Page 35
as e
l h h e i if
a g l A aS m · NCERT So ut ons
gl e l i
A ball and a matchbox are light.
co m
A balloon is full of air.
em.
m l as
.co
WhyseAmir is very light A balloon can even float a g
gla
: . .
a
— Page 78 co m
Let us Think
e m . ag
W aa
g l as
a
hich side of the b l nce goes down?
T ✓ ta s and fruits which will make the balance go down. Mark Light L
m
co
Q1 t v
m.
ick he ege ble
an H avy H.
✓H as e
d e
c o m
Row A s on nt ook: pumpkin potato L.)
g l
B.. a
i d e i he b ,
e m
g l as
a
m a s
m .co agl
l a se
a g
orange L watermelon
H co m
m .
m as e
.co a g l
se m
g l a An oran ge an a wat rm on w t t
d e el , i h he b a an
l ce f rom the book.
a
se m
com g l a
m . a
e
Tick the watermelon Watermelaons H orange L
agl
. , .
co m
m .
m as e
.co a g l
se m
g l a
a c
orange L watermelon m .
m H a s e
L m .co H agl
l a se
An oraan
g ge an a wat rm on w t t
d e el , i h he b a an
l ce f rom the book.
co m
m .
m as e
.co
a g l Page 34 of 51
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l h h e i if A aS m · NCERT So ut ons
gl e l i
A watermelon is much bigger than an orange.
Its side of the balance goes down.
Q2 Tick ✓
t v ta
he ege ble s and fruits which will make the balance go down. Mark Light L
an H avy H.
✓H
d e
Row A s on nt
i d e i he b ook: pumpkin , potato L.)
C.
coconut L mango
H
A o onut an a man o w t t
c c d g , i h he b a an
l ce f rom the book.
Tick the coconut. Coconut H, mango L.
coconut L mango
H
H L
A o onut an a man o w t t
c c d g , i h he b a an
l ce f rom the book.
A coconut is big, with a hard shell and water inside.
Its side of the balance goes down.
Page 35 of 51
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l h h e i if A aS m · NCERT So ut ons
gl e l i
Q3 Tick ✓
t v ta
he ege s and fruits which will make the balance go down. Mark Light L
ble
an H avy H.
✓H
d e
Row A s on nt
i d e i he b ook: pumpkin , potato L.)
D.
apple L r n chilli
H g ee
An app an a r n
le d g ee chilli, with the balance from the book.
Tick the apple. Apple H, green chilli L.
apple L green chilli
H
H L
An app an a r n
le d g ee chilli, with the balance from the book.
An apple is round and full.
A chilli is thin and light.
Let us Do — Page 79
Page 36 of 51
Page 38
l h h e i if A aS m · NCERT So ut ons
gl e l i
San or ry av s K n s o a an
d d le e ?· i d f b l ce
Q1 Ta two pap r a s o sam s z . F on w t san an t
ke e b g f e i e ill e i h d d he other with dry leaves.
D s uss t r w ts (w
i c hei a s av r). eigh hich b g i he ie
The bag of sand is heavier .
Both bags are the same size.
Sand fills the bag tightly.
Dry leaves have lots of air between them.
Why Same size does not mean same weight
: .
Q2 Loo at t
k pictures and discuss the different types of balance used by people in the
he
pictures given below.
1 2
3 4
1.00 Kg
Four p tur s rom t
ic e f he b ook. Each shows a different way to weigh things. Each has a box to
tick.
There are four kinds of balance .
Page 37 of 51
Page 39
l h h e i if A aS m · NCERT So ut ons
gl e l i
− Exp anat on
l i
A hanging balance with a hook. It weighs a gas cylinder.
A pan balance with weights. The shopkeeper uses it.
A machine with a screen. It shows the weight as a number.
A hand-held balance with two pans. It weighs cotton.
Why All of them tell how heavy a thing is
: .
Q3 T
ick ✓ the type of balance you have seen before.
1 2
3 4
1.00 Kg
Four p tur s rom t
ic e f ook. Each shows a different way to weigh things. Each has a box to
he b
tick.
Sample answer I tick pictures and
: 2 3.
I saw a pan balance at the vegetable shop.
I saw a machine with a screen at the sweet shop.
Why Different shops use different balances
: .
Page 38 of 51
Page 40
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Fruits in the Park — Page 80 co m
em.
Ba an n t s sam
c o w
g l as
. a
l ci g he ee-
e m
as
1 l Wat rm on an man o want to p ay on t
g
a
Q e el d g see-saw. Watermelon sits on one side, but
l he
he could not get up. His friend mango called other mangoes to sit on the other side.
m
A. How many mangoes will balance the watermelon? Find out from the picture given
co
above.
em . ag
g l as
a
co m
em.
m l as
m .co a g
l a se
a g
m a s
m .co agl
l a se
ag
T he see-saw is level. A watermelon sits on one side. Mangoes sit on the other side.
co m
m .
as e
Rm
A NSWcE o g l
m . a
e
as goes balance the watermelon
a
agl
m 6n .
se m
com g l a
m . a
ase
agl
5 6
1 2 3 4
co m
m .
m as e
.co a g l
se m
g l a
a c
m .
a s e
T .cmoam
m
n o s ount one by one.
agl
se
he g e c ed
g l a
4 2 6 a
co m
m .
m as e
.co
a g l Page 39 of 51
Page 41
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gl e l i
− Exp anat on
l i
The see-saw is level. So both sides weigh the same.
Count the mangoes: 4 below and 2 on top.
4 and 2 make 6.
Why Level means balanced
: .
Page 40 of 51
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Q2 Wat rm on an man o want to p ay on t s -saw. Wat rm on s ts on on s
e el d g l he ee e el i e ide, b ut
he cou not t up. H s r n man o a
ld ge ot r man o s to s t on t ot r s
i f ie d g c lled he g e i he he ide.
B. How many o onuts an a an t wat rm on —
c c c b l ce he e el if
W t o 1 Co onut W t o 2 Man o s
eigh f c eigh f g e
The see-saw is level. A watermelon sits on one side. Mangoes sit on the other side.
=
Weight of 1 Coconut Weight of 2 Mangoes
On e c oconut weighs the same as two mangoes.
3 coconuts balance the watermelon.
Page 41 of 51
Page 43
l h h e i if A aS m · NCERT So ut ons
gl e l i
6 mangoes make 3 pairs. Each pair is one coconut.
2 2 2 6. So 3 coconuts.
− Exp anat on
l i
The watermelon weighs the same as 6 mangoes.
Make pairs of mangoes: 2, 4, 6. That is 3 pairs.
Each pair weighs the same as 1 coconut.
Why Each coconut is as heavy as mangoes
: 2 .
Project Work — Page 80
W ow h eigh s more or less? · Check your weight
Q1 Nam som o your am y m m
e e f f il e rs or friends who you think weigh
be
A. a most t sam as you
l he e ________________
Sample answer my friend Meena : .
− Exp anat on
l i
Think of someone as big as you.
Same size often means almost the same weight.
Page 42 of 51
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Why Almost the same means nearly equal
: .
Tip: Guess first. Then check on a weighing machine.
Q2 Nam som o your am y m m
e e f f il e rs or friends who you think weigh
be
B. mor t an you
e h ________________
Sample answer my father : .
Think of someone bigger than you.
Grown-ups are bigger. So they weigh more.
Why A bigger person usually weighs more
: .
Q3 Nam som o your am y m m
e e f f il e be rs or friends who you think weigh
C. ss t an you
le h ________________
Sample answer my little brother
: .
Think of someone smaller than you.
A little child weighs less than you.
Why A smaller person usually weighs less
: .
Q4 F n out t
i d he places where you can check your weight. What is your weight?
Sample answer at a clinic a chemist shop or at school
: , .
Stand still on the weighing machine.
Read the number with an adult.
Write that number in the box.
Page 43 of 51
Page 45
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Why The machine shows your weight as a number co m
m.
:
e
.
m l as
.co a g
a s em
gl make Nimbu Pani — Page 81
Letaus
In r nts for 3 gl sses a
m
g edie
. co ag
e m
Q1 Ra gh
g l as
u and his friends made nimbu pani for Raghuʼs grandmother. He used the
following things to prepare 1 glass of nimbu pani.
a
A. Water: 1 glass
B. Sugar: 1 spoon
co m
C. Lemon juice: 2 spoons
em.
m l as
.co g
D. A pinch of salt
m a
se
Now Raghu wants to make nimbu pani for himself and his two friends. Raghu has to
g l a make 3 glasses of nimbu pani. Write the quantity of ingredients he has to use to make
a 3 glasses of nimbu pani.
Water: ☐ glasses
m a s
m .co agl
l a se
g
Water: 3 glasses a
1 glass of nimbu pani needs 1 glass of water.
co m
m .
3 glasses need 1 1 1.
as e
Thactoism3. g l
m . a
ase
agl Why Each glass needs its own water
: .
se m
com g l a
m . a
e
Ra u an s r n s maa s nimbu pani or Ra u s ran mot r H us
agplar ass o nimbu pani
Q2 gh d hi f ie d de f gh ʼ g d he . e ed the
fo ow n t n s to pr
ll i g hi g e e 1 gl f .
A. Wat r: 1 ass
om
e gl
B. Su ar: 1 spoon
. c
em
g
m
C. L mon u : 2 spoons
a s
co D. A p n o sa t gl
e j ice
. a
em Now Ra u wants to ma nimbu pani or ms an s two r n s. Ra u as to
i ch f l
a s
agl
gh ke f hi elf d hi f ie d gh h
ma 3 ass s o nimbu pani. Wr t t quant ty o n r nts as to us to ma
.c
ke gl e f i e he i f i g edie he h e ke
m
ass s o nimbu pani.
s e
3 gl e f
Su ar: ☐ spoon m a
. co agl
g
e m
g l as
Sugar: 3 spoons
a
co m
m .
m as e
.co
a g l Page 44 of 51
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gl e l i
1 glass needs 1 spoon of sugar.
3 glasses need 1 1 1.
That is 3 spoons.
Why Each glass gets spoon
: 1 .
Q3 Ra u and his friends made nimbu pani for Raghuʼs grandmother. He used the
gh
following things to prepare 1 glass of nimbu pani.
A. Water: 1 glass
B. Sugar: 1 spoon
C. Lemon juice: 2 spoons
D. A pinch of salt
Now Raghu wants to make nimbu pani for himself and his two friends. Raghu has to
make 3 glasses of nimbu pani. Write the quantity of ingredients he has to use to make
3 glasses of nimbu pani.
Lemon juice: ☐ spoons
Lemon juice: 6 spoons
1 glass needs 2 spoons of lemon juice.
Count in twos for 3 glasses: 2, 4, 6.
Why : 2 2 2 6.
Q4 Ra u and his friends made nimbu pani for Raghuʼs grandmother. He used the
gh
following things to prepare 1 glass of nimbu pani.
A. Water: 1 glass
B. Sugar: 1 spoon
C. Lemon juice: 2 spoons
D. A pinch of salt
Now Raghu wants to make nimbu pani for himself and his two friends. Raghu has to
make 3 glasses of nimbu pani. Write the quantity of ingredients he has to use to make
3 glasses of nimbu pani.
Salt: ☐ pinch
Salt: 3 pinches
1 glass needs a pinch of salt.
Page 45 of 51
Page 47
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3 glasses need 1 1 1 pinch.
Why Each glass gets pinch
: 1 .
Find Out — Page 81
Your avour t
f i e d i r nk
Q1 Nam som r n s t at ar pr par at your om . F n out t
e e d i k h e e ed h e i d ngredients used for
he i
ma n your avour t r n an wr t t m
ki g f ow. i e d i k d i e he bel
Nam o your avour t r n
e f f i e d i k __________
INGREDIENTS QUANTITY
Sample answer Drinks at home milk lassi nimbu pani My favourite drink is lassi
: : , , . .
INGREDIENTS QUANTITY
Curd 1 glass
Sugar 2 spoons
Ice 2 pieces
Ask an elder how it is made.
Write each thing and how much.
Find Out — Page 82
Page 46 of 51
Page 48
l h h e i if A aS m · NCERT So ut ons
gl e l i
Ra u s ott
gh ʼ b le h olds four gl ssesa
Q1 Ra uʼs ott s
gh b w t our ass s o wat r.
le i filled i h f gl e f e
A. How many ass s o wat r an your ott ?
gl e f e c fill b le
=
Raghuʼs bottle 4 glasses of water
Raghuʼs bottle holds four glasses of water.
Sample answer My bottle holds glasses
: 3 .
Fill a glass with water.
Pour it into your bottle.
Count the glasses till the bottle is full.
Why Counting glasses tells how much a bottle holds
: .
Page 47 of 51
Page 49
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gl e l i
Q2 Ra uʼs ott s
gh b w t our ass s o wat r.
le i filled i h f gl e f e
B. How many ass s o wat r an your r n ʼs ott ?
gl e f e c fill f ie d b le
=
Raghuʼs bottle 4 glasses of water
Raghuʼs bottle holds four glasses of water.
Sample answer My friend s bottle holds glasses
: ʼ 5 .
Use the same glass.
Fill your friendʼs bottle glass by glass.
Count the glasses.
Why The same glass makes the count fair
: .
Page 48 of 51
Page 50
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co m
m.
Q3 Ra uʼs ott s wt our glasses of water.
e
gh b le i filled i h f
m
C. Do s your r n ʼs ott le fill with equal/ more/less amount of water?
l as
.co g
e f ie d b
m a
l a se
ag
co m
em . ag
as
a g
=l
m
co
em.
m l as
m .co a g
l a se
a g
Raghuʼs bottle 4 glasses of water
m a s
Raghu sm .cleoholds four glasses of water agl
se
bott
a
ʼ .
ag l
co m
m .
Sample answer My friend s bottle holds more water
m as e
l
:
My.cboottle holds glasses
ʼ .
a g
s em
3 .
gl a My friend s bottle holds glasses
a
ʼ 5 .
5 is more than 3.
se m
Why More glasses means morme w.caotm g l a
er a
se
: .
l a
ag
Q4 Nam t r n w os ott an arry —
co m
.
e he f ie d h e b le c c
A. Equa wat r as yours
em
m as
l e
.co a g l
s e mA NSW E R
a
agl Sample answer Ravi His bottle also holds glasses c
.
: . 3 .
Fill each friendʼs bottle with the same glass.
s e m
m yours. a
Find a bottle that takes 3 glasse.sc, olike
em agl
a s
Why Equal means atheglsame number of glasses
: .
co m
m .
m ase
.co
a g l Page 49 of 51
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gl e l i
Q5 Nam t r n w os ott
e he f ie d h e b le c an arry —
c
B. L ss wat r t an yours
e e h
Sample answer Anu Her bottle holds glasses
: . 2 .
Find a bottle that takes fewer glasses than yours.
2 is less than 3.
Why Fewer glasses means less water
: .
Q6 Nam t r n w os ott
e he f ie d h e b le c an arry —
c
C. Mor wat r t an yours
e e h
Sample answer Meena Her bottle holds glasses
: . 5 .
Find a bottle that takes more glasses than yours.
5 is more than 3.
Why More glasses means more water
: .
Project Work — Page 82
Ma a a taran
ke j l g
Q1 To ma a jal tarang (mus a nstrum nt), arran 57 s m ar ass s or ow s. F
ke ic l i e ge i il gl e b l ill
t m w t vary n
he v s o wat r. G nt y tap a spoon on a
i h i g le el ass or ow an ar
f e e l e ch gl b l d he
how a on soun s. Tap at
e ch r nt parts o t
e ass or ow to
d t r n .
diffe e f he gl b l feel he diffe e ce
Fill the glasses with different amounts of water. Then tap each one.
− Exp anat onl i
Put 5 to 7 same glasses in a row.
Pour a little more water in each next glass.
Tap each glass gently with a spoon.
Page 50 of 51
Page 52
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Why More water gives a lower sound Less water gives a higher sound
: . .
Tip: Do not waste the water. Pour it on plants.
Chapter at a glance
Hands are not all the same size .
So one bed can be 8, 10 or 14 handspans.
Measure with one same thing. Then everyone gets the same number.
We can count blocks, lines or pencils to find a length.
On a balance, the heavy side goes down.
We count glasses to see how much a bottle holds.
Quick revision
IDEA WHAT IT MEANS EXAMPLE PAGE
Handspan Your hand stretched wide The bed: 10 handspans 71
Estimated length Your guess Desk about books
: 5 72
Actual length What you count Desk : 4 books 72
Longest path The path with the most small lines Path 3 has 10 73
Height in blocks Count blocks from the ground Giraffe : 9 blocks 74
Heavier lighter
/ Which one pulls down more Pumpkin is heavier than bottle gourd 76
Balance The heavy side goes down Watermelon side goes down 7779
Balanced Both sides weigh the same 1 watermelon 6 mangoes 80
Holds more less / Count glasses of water Raghuʼs bottle: 4 glasses 82
Page 51 of 51